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Linux/tools/perf/Documentation/perf-top.txt

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Differences between /tools/perf/Documentation/perf-top.txt (Version linux-6.12-rc7) and /tools/perf/Documentation/perf-top.txt (Version linux-6.6.60)


  1 perf-top(1)                                         1 perf-top(1)
  2 ===========                                         2 ===========
  3                                                     3 
  4 NAME                                                4 NAME
  5 ----                                                5 ----
  6 perf-top - System profiling tool.                   6 perf-top - System profiling tool.
  7                                                     7 
  8 SYNOPSIS                                            8 SYNOPSIS
  9 --------                                            9 --------
 10 [verse]                                            10 [verse]
 11 'perf top' [-e <EVENT> | --event=EVENT] [<opti     11 'perf top' [-e <EVENT> | --event=EVENT] [<options>]
 12                                                    12 
 13 DESCRIPTION                                        13 DESCRIPTION
 14 -----------                                        14 -----------
 15 This command generates and displays a performa     15 This command generates and displays a performance counter profile in real time.
 16                                                    16 
 17                                                    17 
 18 OPTIONS                                            18 OPTIONS
 19 -------                                            19 -------
 20 -a::                                               20 -a::
 21 --all-cpus::                                       21 --all-cpus::
 22         System-wide collection.  (default)         22         System-wide collection.  (default)
 23                                                    23 
 24 -c <count>::                                       24 -c <count>::
 25 --count=<count>::                                  25 --count=<count>::
 26         Event period to sample.                    26         Event period to sample.
 27                                                    27 
 28 -C <cpu-list>::                                    28 -C <cpu-list>::
 29 --cpu=<cpu>::                                      29 --cpu=<cpu>::
 30 Monitor only on the list of CPUs provided. Mul     30 Monitor only on the list of CPUs provided. Multiple CPUs can be provided as a
 31 comma-separated list with no space: 0,1. Range     31 comma-separated list with no space: 0,1. Ranges of CPUs are specified with -: 0-2.
 32 Default is to monitor all CPUS.                    32 Default is to monitor all CPUS.
 33                                                    33 
 34 -d <seconds>::                                     34 -d <seconds>::
 35 --delay=<seconds>::                                35 --delay=<seconds>::
 36         Number of seconds to delay between ref     36         Number of seconds to delay between refreshes.
 37                                                    37 
 38 -e <event>::                                       38 -e <event>::
 39 --event=<event>::                                  39 --event=<event>::
 40         Select the PMU event. Selection can be     40         Select the PMU event. Selection can be a symbolic event name
 41         (use 'perf list' to list all events) o     41         (use 'perf list' to list all events) or a raw PMU event in the form
 42         of rN where N is a hexadecimal value t     42         of rN where N is a hexadecimal value that represents the raw register
 43         encoding with the layout of the event      43         encoding with the layout of the event control registers as described
 44         by entries in /sys/bus/event_source/de     44         by entries in /sys/bus/event_source/devices/cpu/format/*.
 45                                                    45 
 46 --filter=<filter>::                            << 
 47         Event filter.  This option should foll << 
 48         syntax see linkperf:perf-record[1].    << 
 49                                                << 
 50 -E <entries>::                                     46 -E <entries>::
 51 --entries=<entries>::                              47 --entries=<entries>::
 52         Display this many functions.               48         Display this many functions.
 53                                                    49 
 54 -f <count>::                                       50 -f <count>::
 55 --count-filter=<count>::                           51 --count-filter=<count>::
 56         Only display functions with more event     52         Only display functions with more events than this.
 57                                                    53 
 58 --group-sort-idx::                                 54 --group-sort-idx::
 59         Sort the output by the event at the in     55         Sort the output by the event at the index n in group. If n is invalid,
 60         sort by the first event. It can suppor     56         sort by the first event. It can support multiple groups with different
 61         amount of events. WARNING: This should     57         amount of events. WARNING: This should be used on grouped events.
 62                                                    58 
 63 -F <freq>::                                        59 -F <freq>::
 64 --freq=<freq>::                                    60 --freq=<freq>::
 65         Profile at this frequency. Use 'max' t     61         Profile at this frequency. Use 'max' to use the currently maximum
 66         allowed frequency, i.e. the value in t     62         allowed frequency, i.e. the value in the kernel.perf_event_max_sample_rate
 67         sysctl.                                    63         sysctl.
 68                                                    64 
 69 -i::                                               65 -i::
 70 --inherit::                                        66 --inherit::
 71         Child tasks do not inherit counters.       67         Child tasks do not inherit counters.
 72                                                    68 
 73 -k <path>::                                        69 -k <path>::
 74 --vmlinux=<path>::                                 70 --vmlinux=<path>::
 75         Path to vmlinux.  Required for annotat     71         Path to vmlinux.  Required for annotation functionality.
 76                                                    72 
 77 --ignore-vmlinux::                                 73 --ignore-vmlinux::
 78         Ignore vmlinux files.                      74         Ignore vmlinux files.
 79                                                    75 
 80 --kallsyms=<file>::                                76 --kallsyms=<file>::
 81         kallsyms pathname                          77         kallsyms pathname
 82                                                    78 
 83 -m <pages>::                                       79 -m <pages>::
 84 --mmap-pages=<pages>::                             80 --mmap-pages=<pages>::
 85         Number of mmap data pages (must be a p     81         Number of mmap data pages (must be a power of two) or size
 86         specification in bytes with appended u !!  82         specification with appended unit character - B/K/M/G. The
 87         The size is rounded up to the nearest  !!  83         size is rounded up to have nearest pages power of two value.
 88                                                    84 
 89 -p <pid>::                                         85 -p <pid>::
 90 --pid=<pid>::                                      86 --pid=<pid>::
 91         Profile events on existing Process ID      87         Profile events on existing Process ID (comma separated list).
 92                                                    88 
 93 -t <tid>::                                         89 -t <tid>::
 94 --tid=<tid>::                                      90 --tid=<tid>::
 95         Profile events on existing thread ID (     91         Profile events on existing thread ID (comma separated list).
 96                                                    92 
 97 -u::                                               93 -u::
 98 --uid=::                                           94 --uid=::
 99         Record events in threads owned by uid.     95         Record events in threads owned by uid. Name or number.
100                                                    96 
101 -r <priority>::                                    97 -r <priority>::
102 --realtime=<priority>::                            98 --realtime=<priority>::
103         Collect data with this RT SCHED_FIFO p     99         Collect data with this RT SCHED_FIFO priority.
104                                                   100 
105 --sym-annotate=<symbol>::                         101 --sym-annotate=<symbol>::
106         Annotate this symbol.                     102         Annotate this symbol.
107                                                   103 
108 -K::                                              104 -K::
109 --hide_kernel_symbols::                           105 --hide_kernel_symbols::
110         Hide kernel symbols.                      106         Hide kernel symbols.
111                                                   107 
112 -U::                                              108 -U::
113 --hide_user_symbols::                             109 --hide_user_symbols::
114         Hide user symbols.                        110         Hide user symbols.
115                                                   111 
116 --demangle-kernel::                               112 --demangle-kernel::
117         Demangle kernel symbols.                  113         Demangle kernel symbols.
118                                                   114 
119 -D::                                              115 -D::
120 --dump-symtab::                                   116 --dump-symtab::
121         Dump the symbol table used for profili    117         Dump the symbol table used for profiling.
122                                                   118 
123 -v::                                              119 -v::
124 --verbose::                                       120 --verbose::
125         Be more verbose (show counter open err    121         Be more verbose (show counter open errors, etc).
126                                                   122 
127 -z::                                              123 -z::
128 --zero::                                          124 --zero::
129         Zero history across display updates.      125         Zero history across display updates.
130                                                   126 
131 -s::                                              127 -s::
132 --sort::                                          128 --sort::
133         Sort by key(s): pid, comm, dso, symbol    129         Sort by key(s): pid, comm, dso, symbol, parent, srcline, weight,
134         local_weight, abort, in_tx, transactio    130         local_weight, abort, in_tx, transaction, overhead, sample, period.
135         Please see description of --sort in th    131         Please see description of --sort in the perf-report man page.
136                                                   132 
137 --fields=::                                       133 --fields=::
138         Specify output field - multiple keys c    134         Specify output field - multiple keys can be specified in CSV format.
139         Following fields are available:           135         Following fields are available:
140         overhead, overhead_sys, overhead_us, o    136         overhead, overhead_sys, overhead_us, overhead_children, sample and period.
141         Also it can contain any sort key(s).      137         Also it can contain any sort key(s).
142                                                   138 
143         By default, every sort keys not specif    139         By default, every sort keys not specified in --field will be appended
144         automatically.                            140         automatically.
145                                                   141 
146 -n::                                              142 -n::
147 --show-nr-samples::                               143 --show-nr-samples::
148         Show a column with the number of sampl    144         Show a column with the number of samples.
149                                                   145 
150 --show-total-period::                             146 --show-total-period::
151         Show a column with the sum of periods.    147         Show a column with the sum of periods.
152                                                   148 
153 --dsos::                                          149 --dsos::
154         Only consider symbols in these dsos.      150         Only consider symbols in these dsos.  This option will affect the
155         percentage of the overhead column.  Se    151         percentage of the overhead column.  See --percentage for more info.
156                                                   152 
157 --comms::                                         153 --comms::
158         Only consider symbols in these comms.     154         Only consider symbols in these comms.  This option will affect the
159         percentage of the overhead column.  Se    155         percentage of the overhead column.  See --percentage for more info.
160                                                   156 
161 --symbols::                                       157 --symbols::
162         Only consider these symbols.  This opt    158         Only consider these symbols.  This option will affect the
163         percentage of the overhead column.  Se    159         percentage of the overhead column.  See --percentage for more info.
164                                                   160 
165 -M::                                              161 -M::
166 --disassembler-style=:: Set disassembler style    162 --disassembler-style=:: Set disassembler style for objdump.
167                                                   163 
168 --addr2line=<path>::                              164 --addr2line=<path>::
169         Path to addr2line binary.                 165         Path to addr2line binary.
170                                                   166 
171 --objdump=<path>::                                167 --objdump=<path>::
172         Path to objdump binary.                   168         Path to objdump binary.
173                                                   169 
174 --prefix=PREFIX::                                 170 --prefix=PREFIX::
175 --prefix-strip=N::                                171 --prefix-strip=N::
176         Remove first N entries from source fil    172         Remove first N entries from source file path names in executables
177         and add PREFIX. This allows to display    173         and add PREFIX. This allows to display source code compiled on systems
178         with different file system layout.        174         with different file system layout.
179                                                   175 
180 --source::                                        176 --source::
181         Interleave source code with assembly c    177         Interleave source code with assembly code. Enabled by default,
182         disable with --no-source.                 178         disable with --no-source.
183                                                   179 
184 --asm-raw::                                       180 --asm-raw::
185         Show raw instruction encoding of assem    181         Show raw instruction encoding of assembly instructions.
186                                                   182 
187 -g::                                              183 -g::
188         Enables call-graph (stack chain/backtr    184         Enables call-graph (stack chain/backtrace) recording.
189                                                   185 
190 --call-graph [mode,type,min[,limit],order[,key    186 --call-graph [mode,type,min[,limit],order[,key][,branch]]::
191         Setup and enable call-graph (stack cha    187         Setup and enable call-graph (stack chain/backtrace) recording,
192         implies -g.  See `--call-graph` sectio    188         implies -g.  See `--call-graph` section in perf-record and
193         perf-report man pages for details.        189         perf-report man pages for details.
194                                                   190 
195 --children::                                      191 --children::
196         Accumulate callchain of children to pa    192         Accumulate callchain of children to parent entry so that then can
197         show up in the output.  The output wil    193         show up in the output.  The output will have a new "Children" column
198         and will be sorted on the data.  It re    194         and will be sorted on the data.  It requires -g/--call-graph option
199         enabled.  See the `overhead calculatio    195         enabled.  See the `overhead calculation' section for more details.
200         Enabled by default, disable with --no-    196         Enabled by default, disable with --no-children.
201                                                   197 
202 --max-stack::                                     198 --max-stack::
203         Set the stack depth limit when parsing    199         Set the stack depth limit when parsing the callchain, anything
204         beyond the specified depth will be ign    200         beyond the specified depth will be ignored. This is a trade-off
205         between information loss and faster pr    201         between information loss and faster processing especially for
206         workloads that can have a very long ca    202         workloads that can have a very long callchain stack.
207                                                   203 
208         Default: /proc/sys/kernel/perf_event_m    204         Default: /proc/sys/kernel/perf_event_max_stack when present, 127 otherwise.
209                                                   205 
210 --ignore-callees=<regex>::                        206 --ignore-callees=<regex>::
211         Ignore callees of the function(s) matc    207         Ignore callees of the function(s) matching the given regex.
212         This has the effect of collecting the     208         This has the effect of collecting the callers of each such
213         function into one place in the call-gr    209         function into one place in the call-graph tree.
214                                                   210 
215 --percent-limit::                                 211 --percent-limit::
216         Do not show entries which have an over    212         Do not show entries which have an overhead under that percent.
217         (Default: 0).                             213         (Default: 0).
218                                                   214 
219 --percentage::                                    215 --percentage::
220         Determine how to display the overhead     216         Determine how to display the overhead percentage of filtered entries.
221         Filters can be applied by --comms, --d    217         Filters can be applied by --comms, --dsos and/or --symbols options and
222         Zoom operations on the TUI (thread, ds    218         Zoom operations on the TUI (thread, dso, etc).
223                                                   219 
224         "relative" means it's relative to filt    220         "relative" means it's relative to filtered entries only so that the
225         sum of shown entries will be always 10    221         sum of shown entries will be always 100%. "absolute" means it retains
226         the original value before and after th    222         the original value before and after the filter is applied.
227                                                   223 
228 -w::                                              224 -w::
229 --column-widths=<width[,width...]>::              225 --column-widths=<width[,width...]>::
230         Force each column width to the provide    226         Force each column width to the provided list, for large terminal
231         readability.  0 means no limit (defaul    227         readability.  0 means no limit (default behavior).
232                                                   228 
233 --proc-map-timeout::                              229 --proc-map-timeout::
234         When processing pre-existing threads /    230         When processing pre-existing threads /proc/XXX/mmap, it may take
235         a long time, because the file may be h    231         a long time, because the file may be huge. A time out is needed
236         in such cases.                            232         in such cases.
237         This option sets the time out limit. T    233         This option sets the time out limit. The default value is 500 ms.
238                                                   234 
239                                                   235 
240 -b::                                              236 -b::
241 --branch-any::                                    237 --branch-any::
242         Enable taken branch stack sampling. An    238         Enable taken branch stack sampling. Any type of taken branch may be sampled.
243         This is a shortcut for --branch-filter    239         This is a shortcut for --branch-filter any. See --branch-filter for more infos.
244                                                   240 
245 -j::                                              241 -j::
246 --branch-filter::                                 242 --branch-filter::
247         Enable taken branch stack sampling. Ea    243         Enable taken branch stack sampling. Each sample captures a series of consecutive
248         taken branches. The number of branches    244         taken branches. The number of branches captured with each sample depends on the
249         underlying hardware, the type of branc    245         underlying hardware, the type of branches of interest, and the executed code.
250         It is possible to select the types of     246         It is possible to select the types of branches captured by enabling filters.
251         For a full list of modifiers please se    247         For a full list of modifiers please see the perf record manpage.
252                                                   248 
253         The option requires at least one branc    249         The option requires at least one branch type among any, any_call, any_ret, ind_call, cond.
254         The privilege levels may be omitted, i    250         The privilege levels may be omitted, in which case, the privilege levels of the associated
255         event are applied to the branch filter    251         event are applied to the branch filter. Both kernel (k) and hypervisor (hv) privilege
256         levels are subject to permissions.  Wh    252         levels are subject to permissions.  When sampling on multiple events, branch stack sampling
257         is enabled for all the sampling events    253         is enabled for all the sampling events. The sampled branch type is the same for all events.
258         The various filters must be specified     254         The various filters must be specified as a comma separated list: --branch-filter any_ret,u,k
259         Note that this feature may not be avai    255         Note that this feature may not be available on all processors.
260                                                   256 
261 --branch-history::                                257 --branch-history::
262         Add the addresses of sampled taken bra    258         Add the addresses of sampled taken branches to the callstack.
263         This allows to examine the path the pr    259         This allows to examine the path the program took to each sample.
264                                                   260 
265 --raw-trace::                                     261 --raw-trace::
266         When displaying traceevent output, do     262         When displaying traceevent output, do not use print fmt or plugins.
267                                                   263 
268 -H::                                           << 
269 --hierarchy::                                     264 --hierarchy::
270         Enable hierarchical output.  In the hi !! 265         Enable hierarchy output.
271         samples based on the criteria and then << 
272         level sort key.                        << 
273                                                << 
274         For example, in normal output:         << 
275                                                << 
276           perf report -s dso,sym               << 
277           #                                    << 
278           # Overhead  Shared Object      Symbo << 
279           # ........  .................  ..... << 
280               50.00%  [kernel.kallsyms]  [k] k << 
281               20.00%  perf               [.] f << 
282               15.00%  [kernel.kallsyms]  [k] k << 
283               10.00%  perf               [.] b << 
284                5.00%  libc.so            [.] l << 
285                                                << 
286         In hierarchy output:                   << 
287                                                << 
288           perf report -s dso,sym --hierarchy   << 
289           #                                    << 
290           #   Overhead  Shared Object / Symbol << 
291           # ..........  ...................... << 
292               65.00%    [kernel.kallsyms]      << 
293                 50.00%    [k] kfunc1           << 
294                 15.00%    [k] kfunc2           << 
295               30.00%    perf                   << 
296                 20.00%    [.] foo              << 
297                 10.00%    [.] bar              << 
298                5.00%    libc.so                << 
299                  5.00%    [.] libcall          << 
300                                                   266 
301 --overwrite::                                     267 --overwrite::
302         Enable this to use just the most recen    268         Enable this to use just the most recent records, which helps in high core count
303         machines such as Knights Landing/Mill,    269         machines such as Knights Landing/Mill, but right now is disabled by default as
304         the pausing used in this technique is     270         the pausing used in this technique is leading to loss of metadata events such
305         as PERF_RECORD_MMAP which makes 'perf     271         as PERF_RECORD_MMAP which makes 'perf top' unable to resolve samples, leading
306         to lots of unknown samples appearing o    272         to lots of unknown samples appearing on the UI. Enable this if you are in such
307         machines and profiling a workload that    273         machines and profiling a workload that doesn't creates short lived threads and/or
308         doesn't uses many executable mmap oper    274         doesn't uses many executable mmap operations. Work is being planed to solve
309         this situation, till then, this will r    275         this situation, till then, this will remain disabled by default.
310                                                   276 
311 --force::                                         277 --force::
312         Don't do ownership validation.            278         Don't do ownership validation.
313                                                   279 
314 --num-thread-synthesize::                         280 --num-thread-synthesize::
315         The number of threads to run when synt    281         The number of threads to run when synthesizing events for existing processes.
316         By default, the number of threads equa    282         By default, the number of threads equals to the number of online CPUs.
317                                                   283 
318 --namespaces::                                    284 --namespaces::
319         Record events of type PERF_RECORD_NAME    285         Record events of type PERF_RECORD_NAMESPACES and display it with the
320         'cgroup_id' sort key.                     286         'cgroup_id' sort key.
321                                                   287 
322 -G name::                                         288 -G name::
323 --cgroup name::                                   289 --cgroup name::
324 monitor only in the container (cgroup) called     290 monitor only in the container (cgroup) called "name". This option is available only
325 in per-cpu mode. The cgroup filesystem must be    291 in per-cpu mode. The cgroup filesystem must be mounted. All threads belonging to
326 container "name" are monitored when they run o    292 container "name" are monitored when they run on the monitored CPUs. Multiple cgroups
327 can be provided. Each cgroup is applied to the    293 can be provided. Each cgroup is applied to the corresponding event, i.e., first cgroup
328 to first event, second cgroup to second event     294 to first event, second cgroup to second event and so on. It is possible to provide
329 an empty cgroup (monitor all the time) using,     295 an empty cgroup (monitor all the time) using, e.g., -G foo,,bar. Cgroups must have
330 corresponding events, i.e., they always refer     296 corresponding events, i.e., they always refer to events defined earlier on the command
331 line. If the user wants to track multiple even    297 line. If the user wants to track multiple events for a specific cgroup, the user can
332 use '-e e1 -e e2 -G foo,foo' or just use '-e e    298 use '-e e1 -e e2 -G foo,foo' or just use '-e e1 -e e2 -G foo'.
333                                                   299 
334 --all-cgroups::                                   300 --all-cgroups::
335         Record events of type PERF_RECORD_CGRO    301         Record events of type PERF_RECORD_CGROUP and display it with the
336         'cgroup' sort key.                        302         'cgroup' sort key.
337                                                   303 
338 --switch-on EVENT_NAME::                          304 --switch-on EVENT_NAME::
339         Only consider events after this event     305         Only consider events after this event is found.
340                                                   306 
341         E.g.:                                     307         E.g.:
342                                                   308 
343            Find out where broadcast packets ar    309            Find out where broadcast packets are handled
344                                                   310 
345                 perf probe -L icmp_rcv            311                 perf probe -L icmp_rcv
346                                                   312 
347            Insert a probe there:                  313            Insert a probe there:
348                                                   314 
349                 perf probe icmp_rcv:59            315                 perf probe icmp_rcv:59
350                                                   316 
351            Start perf top and ask it to only c    317            Start perf top and ask it to only consider the cycles events when a
352            broadcast packet arrives This will     318            broadcast packet arrives This will show a menu with two entries and
353            will start counting when a broadcas    319            will start counting when a broadcast packet arrives:
354                                                   320 
355                 perf top -e cycles,probe:icmp_    321                 perf top -e cycles,probe:icmp_rcv --switch-on=probe:icmp_rcv
356                                                   322 
357            Alternatively one can ask for a gro    323            Alternatively one can ask for a group and then two overhead columns
358            will appear, the first for cycles a    324            will appear, the first for cycles and the second for the switch-on event.
359                                                   325 
360                 perf top -e '{cycles,probe:icm    326                 perf top -e '{cycles,probe:icmp_rcv}' --switch-on=probe:icmp_rcv
361                                                   327 
362         This may be interesting to measure a w    328         This may be interesting to measure a workload only after some initialization
363         phase is over, i.e. insert a perf prob    329         phase is over, i.e. insert a perf probe at that point and use the above
364         examples replacing probe:icmp_rcv with    330         examples replacing probe:icmp_rcv with the just-after-init probe.
365                                                   331 
366 --switch-off EVENT_NAME::                         332 --switch-off EVENT_NAME::
367         Stop considering events after this eve    333         Stop considering events after this event is found.
368                                                   334 
369 --show-on-off-events::                            335 --show-on-off-events::
370         Show the --switch-on/off events too. T    336         Show the --switch-on/off events too. This has no effect in 'perf top' now
371         but probably we'll make the default no    337         but probably we'll make the default not to show the switch-on/off events
372         on the --group mode and if there is on    338         on the --group mode and if there is only one event besides the off/on ones,
373         go straight to the histogram browser,     339         go straight to the histogram browser, just like 'perf top' with no events
374         explicitly specified does.                340         explicitly specified does.
375                                                   341 
376 --stitch-lbr::                                    342 --stitch-lbr::
377         Show callgraph with stitched LBRs, whi    343         Show callgraph with stitched LBRs, which may have more complete
378         callgraph. The option must be used wit    344         callgraph. The option must be used with --call-graph lbr recording.
379         Disabled by default. In common cases w    345         Disabled by default. In common cases with call stack overflows,
380         it can recreate better call stacks tha    346         it can recreate better call stacks than the default lbr call stack
381         output. But this approach is not foolp    347         output. But this approach is not foolproof. There can be cases
382         where it creates incorrect call stacks    348         where it creates incorrect call stacks from incorrect matches.
383         The known limitations include exceptio    349         The known limitations include exception handing such as
384         setjmp/longjmp will have calls/returns    350         setjmp/longjmp will have calls/returns not match.
385                                                   351 
386 ifdef::HAVE_LIBPFM[]                              352 ifdef::HAVE_LIBPFM[]
387 --pfm-events events::                             353 --pfm-events events::
388 Select a PMU event using libpfm4 syntax (see h    354 Select a PMU event using libpfm4 syntax (see http://perfmon2.sf.net)
389 including support for event filters. For examp    355 including support for event filters. For example '--pfm-events
390 inst_retired:any_p:u:c=1:i'. More than one eve    356 inst_retired:any_p:u:c=1:i'. More than one event can be passed to the
391 option using the comma separator. Hardware eve    357 option using the comma separator. Hardware events and generic hardware
392 events cannot be mixed together. The latter mu    358 events cannot be mixed together. The latter must be used with the -e
393 option. The -e option and this one can be mixe    359 option. The -e option and this one can be mixed and matched.  Events
394 can be grouped using the {} notation.             360 can be grouped using the {} notation.
395 endif::HAVE_LIBPFM[]                              361 endif::HAVE_LIBPFM[]
396                                                   362 
397 INTERACTIVE PROMPTING KEYS                        363 INTERACTIVE PROMPTING KEYS
398 --------------------------                        364 --------------------------
399                                                   365 
400 [d]::                                             366 [d]::
401         Display refresh delay.                    367         Display refresh delay.
402                                                   368 
403 [e]::                                             369 [e]::
404         Number of entries to display.             370         Number of entries to display.
405                                                   371 
406 [E]::                                             372 [E]::
407         Event to display when multiple counter    373         Event to display when multiple counters are active.
408                                                   374 
409 [f]::                                             375 [f]::
410         Profile display filter (>= hit count).    376         Profile display filter (>= hit count).
411                                                   377 
412 [F]::                                             378 [F]::
413         Annotation display filter (>= % of tot    379         Annotation display filter (>= % of total).
414                                                   380 
415 [s]::                                             381 [s]::
416         Annotate symbol.                          382         Annotate symbol.
417                                                   383 
418 [S]::                                             384 [S]::
419         Stop annotation, return to full profil    385         Stop annotation, return to full profile display.
420                                                   386 
421 [K]::                                             387 [K]::
422         Hide kernel symbols.                      388         Hide kernel symbols.
423                                                   389 
424 [U]::                                             390 [U]::
425         Hide user symbols.                        391         Hide user symbols.
426                                                   392 
427 [z]::                                             393 [z]::
428         Toggle event count zeroing across disp    394         Toggle event count zeroing across display updates.
429                                                   395 
430 [qQ]::                                            396 [qQ]::
431         Quit.                                     397         Quit.
432                                                   398 
433 Pressing any unmapped key displays a menu, and    399 Pressing any unmapped key displays a menu, and prompts for input.
434                                                   400 
435 include::callchain-overhead-calculation.txt[]     401 include::callchain-overhead-calculation.txt[]
436                                                   402 
437 SEE ALSO                                          403 SEE ALSO
438 --------                                          404 --------
439 linkperf:perf-stat[1], linkperf:perf-list[1],     405 linkperf:perf-stat[1], linkperf:perf-list[1], linkperf:perf-report[1]
                                                      

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