1 .TH TURBOSTAT 8 1 .TH TURBOSTAT 8
2 .SH NAME 2 .SH NAME
3 turbostat \- Report processor frequency and id 3 turbostat \- Report processor frequency and idle statistics
4 .SH SYNOPSIS 4 .SH SYNOPSIS
5 .ft B 5 .ft B
6 .B turbostat 6 .B turbostat
7 .RB [ Options ] 7 .RB [ Options ]
8 .RB command 8 .RB command
9 .br 9 .br
10 .B turbostat 10 .B turbostat
11 .RB [ Options ] 11 .RB [ Options ]
12 .RB [ "\--interval seconds" ] 12 .RB [ "\--interval seconds" ]
13 .SH DESCRIPTION 13 .SH DESCRIPTION
14 \fBturbostat \fP reports processor topology, f 14 \fBturbostat \fP reports processor topology, frequency,
15 idle power-state statistics, temperature and p 15 idle power-state statistics, temperature and power on X86 processors.
16 There are two ways to invoke turbostat. 16 There are two ways to invoke turbostat.
17 The first method is to supply a 17 The first method is to supply a
18 \fBcommand\fP, which is forked and statistics 18 \fBcommand\fP, which is forked and statistics are printed
19 in one-shot upon its completion. 19 in one-shot upon its completion.
20 The second method is to omit the command, 20 The second method is to omit the command,
21 and turbostat displays statistics every 5 seco 21 and turbostat displays statistics every 5 seconds interval.
22 The 5-second interval can be changed using the 22 The 5-second interval can be changed using the --interval option.
23 .PP 23 .PP
24 Some information is not available on older pro 24 Some information is not available on older processors.
25 .SS Options 25 .SS Options
26 Options can be specified with a single or doub 26 Options can be specified with a single or double '-', and only as much of the option
27 name as necessary to disambiguate it from othe 27 name as necessary to disambiguate it from others is necessary. Note that options are case-sensitive.
28 .PP 28 .PP
29 \fB--add attributes\fP add column with counter 29 \fB--add attributes\fP add column with counter having specified 'attributes'. The 'location' attribute is required, all others are optional.
30 .nf 30 .nf
31 location: {\fBmsrDDD\fP | \fBmsr0xXXX\ !! 31 location: {\fBmsrDDD\fP | \fBmsr0xXXX\fP | \fB/sys/path...\fP}
32 msrDDD is a decimal offset, eg 32 msrDDD is a decimal offset, eg. msr16
33 msr0xXXX is a hex offset, eg. 33 msr0xXXX is a hex offset, eg. msr0x10
34 /sys/path... is an absolute pa 34 /sys/path... is an absolute path to a sysfs attribute
35 <device> is a perf device from <<
36 <event> is a perf event for gi <<
37 perf/cstate_core/c1-re <<
38 35
39 scope: {\fBcpu\fP | \fBcore\fP | \fBpa 36 scope: {\fBcpu\fP | \fBcore\fP | \fBpackage\fP}
40 sample and print the counter f 37 sample and print the counter for every cpu, core, or package.
41 default: cpu 38 default: cpu
42 39
43 size: {\fBu32\fP | \fBu64\fP } 40 size: {\fBu32\fP | \fBu64\fP }
44 MSRs are read as 64-bits, u32 41 MSRs are read as 64-bits, u32 truncates the displayed value to 32-bits.
45 default: u64 42 default: u64
46 43
47 format: {\fBraw\fP | \fBdelta\fP | \fB 44 format: {\fBraw\fP | \fBdelta\fP | \fBpercent\fP}
48 'raw' shows the MSR contents i 45 'raw' shows the MSR contents in hex.
49 'delta' shows the difference i 46 'delta' shows the difference in values during the measurement interval.
50 'percent' shows the delta as a 47 'percent' shows the delta as a percentage of the cycles elapsed.
51 default: delta 48 default: delta
52 49
53 name: "name_string" 50 name: "name_string"
54 Any string that does not match 51 Any string that does not match a key-word above is used
55 as the column header. 52 as the column header.
56 .fi 53 .fi
57 .PP 54 .PP
58 \fB--add pmt,[attr_name=attr_value, ...]\fP ad <<
59 .nf <<
60 name="name_string" <<
61 For column header. <<
62 <<
63 type={\fBraw\fP} <<
64 'raw' shows the counter conten <<
65 default: raw <<
66 <<
67 format={\fBraw\fP | \fBdelta\fP} <<
68 'raw' shows the counter conten <<
69 'delta' shows the difference i <<
70 default: raw <<
71 <<
72 domain={\fBcpu%u\fP | \fBcore%u\fP | \ <<
73 'cpu' per cpu/thread counter. <<
74 'core' per core counter. <<
75 'package' per package counter. <<
76 '%u' denotes id of the domain <<
77 <<
78 offset=\fB%u\fP <<
79 '%u' offset within the PMT MMI <<
80 <<
81 lsb=\fB%u\fP <<
82 '%u' least significant bit wit <<
83 <<
84 msb=\fB%u\fP <<
85 '%u' most significant bit with <<
86 <<
87 guid=\fB%x\fP <<
88 '%x' hex identifier of the PMT <<
89 .fi <<
90 .PP <<
91 \fB--cpu cpu-set\fP limit output to system sum 55 \fB--cpu cpu-set\fP limit output to system summary plus the specified cpu-set. If cpu-set is the string "core", then the system summary plus the first CPU in each core are printed -- eg. subsequent HT siblings are not printed. Or if cpu-set is the string "package", then the system summary plus the first CPU in each package is printed. Otherwise, the system summary plus the specified set of CPUs are printed. The cpu-set is ordered from low to high, comma delimited with ".." and "-" permitted to denote a range. eg. 1,2,8,14..17,21-44
92 .PP 56 .PP
93 \fB--hide column\fP do not show the specified 57 \fB--hide column\fP do not show the specified built-in columns. May be invoked multiple times, or with a comma-separated list of column names.
94 .PP 58 .PP
95 \fB--enable column\fP show the specified built 59 \fB--enable column\fP show the specified built-in columns, which are otherwise disabled, by default. Currently the only built-in counters disabled by default are "usec", "Time_Of_Day_Seconds", "APIC" and "X2APIC".
96 The column name "all" can be used to enable al 60 The column name "all" can be used to enable all disabled-by-default built-in counters.
97 .PP 61 .PP
98 \fB--show column\fP show only the specified bu 62 \fB--show column\fP show only the specified built-in columns. May be invoked multiple times, or with a comma-separated list of column names.
99 .PP 63 .PP
100 \fB--show CATEGORY --hide CATEGORY\fP Show an 64 \fB--show CATEGORY --hide CATEGORY\fP Show and hide also accept a single CATEGORY of columns: "all", "topology", "idle", "frequency", "power", "sysfs", "other".
101 .PP 65 .PP
102 \fB--Dump\fP displays the raw counter values. 66 \fB--Dump\fP displays the raw counter values.
103 .PP 67 .PP
104 \fB--quiet\fP Do not decode and print the syst 68 \fB--quiet\fP Do not decode and print the system configuration header information.
105 .PP 69 .PP
106 \fB--no-msr\fP Disable all the uses of the MSR <<
107 .PP <<
108 \fB--no-perf\fP Disable all the uses of the pe <<
109 .PP <<
110 \fB--interval seconds\fP overrides the default 70 \fB--interval seconds\fP overrides the default 5.0 second measurement interval.
111 .PP 71 .PP
112 \fB--num_iterations num\fP number of the measu 72 \fB--num_iterations num\fP number of the measurement iterations.
113 .PP 73 .PP
114 \fB--out output_file\fP turbostat output is wr 74 \fB--out output_file\fP turbostat output is written to the specified output_file.
115 The file is truncated if it already exists, an 75 The file is truncated if it already exists, and it is created if it does not exist.
116 .PP 76 .PP
117 \fB--help\fP displays usage for the most commo 77 \fB--help\fP displays usage for the most common parameters.
118 .PP 78 .PP
119 \fB--Joules\fP displays energy in Joules, rath 79 \fB--Joules\fP displays energy in Joules, rather than dividing Joules by time to print power in Watts.
120 .PP 80 .PP
121 \fB--list\fP display column header names avail 81 \fB--list\fP display column header names available for use by --show and --hide, then exit.
122 .PP 82 .PP
123 \fB--Summary\fP limits output to a 1-line Syst 83 \fB--Summary\fP limits output to a 1-line System Summary for each interval.
124 .PP 84 .PP
125 \fB--TCC temperature\fP sets the Thermal Contr 85 \fB--TCC temperature\fP sets the Thermal Control Circuit temperature for systems which do not export that value. This is used for making sense of the Digital Thermal Sensor outputs, as they return degrees Celsius below the TCC activation temperature.
126 .PP 86 .PP
127 \fB--version\fP displays the version. 87 \fB--version\fP displays the version.
128 .PP 88 .PP
129 The \fBcommand\fP parameter forks \fBcommand\f 89 The \fBcommand\fP parameter forks \fBcommand\fP, and upon its exit,
130 displays the statistics gathered since it was 90 displays the statistics gathered since it was forked.
131 .PP 91 .PP
132 .SH ROW DESCRIPTIONS 92 .SH ROW DESCRIPTIONS
133 The system configuration dump (if --quiet is n 93 The system configuration dump (if --quiet is not used) is followed by statistics. The first row of the statistics labels the content of each column (below). The second row of statistics is the system summary line. The system summary line has a '-' in the columns for the Package, Core, and CPU. The contents of the system summary line depends on the type of column. Columns that count items (eg. IRQ) show the sum across all CPUs in the system. Columns that show a percentage show the average across all CPUs in the system. Columns that dump raw MSR values simply show 0 in the summary. After the system summary row, each row describes a specific Package/Core/CPU. Note that if the --cpu parameter is used to limit which specific CPUs are displayed, turbostat will still collect statistics for all CPUs in the system and will still show the system summary for all CPUs in the system.
134 .SH COLUMN DESCRIPTIONS 94 .SH COLUMN DESCRIPTIONS
135 .PP 95 .PP
136 \fBusec\fP For each CPU, the number of microse 96 \fBusec\fP For each CPU, the number of microseconds elapsed during counter collection, including thread migration -- if any. This counter is disabled by default, and is enabled with "--enable usec", or --debug. On the summary row, usec refers to the total elapsed time to collect the counters on all cpus.
137 .PP 97 .PP
138 \fBTime_Of_Day_Seconds\fP For each CPU, the ge 98 \fBTime_Of_Day_Seconds\fP For each CPU, the gettimeofday(2) value (seconds.subsec since Epoch) when the counters ending the measurement interval were collected. This column is disabled by default, and can be enabled with "--enable Time_Of_Day_Seconds" or "--debug". On the summary row, Time_Of_Day_Seconds refers to the timestamp following collection of counters on the last CPU.
139 .PP 99 .PP
140 \fBCore\fP processor core number. Note that m 100 \fBCore\fP processor core number. Note that multiple CPUs per core indicate support for Intel(R) Hyper-Threading Technology (HT).
141 .PP 101 .PP
142 \fBCPU\fP Linux CPU (logical processor) number 102 \fBCPU\fP Linux CPU (logical processor) number. Yes, it is okay that on many systems the CPUs are not listed in numerical order -- for efficiency reasons, turbostat runs in topology order, so HT siblings appear together.
143 .PP 103 .PP
144 \fBPackage\fP processor package number -- not 104 \fBPackage\fP processor package number -- not present on systems with a single processor package.
145 .PP 105 .PP
146 \fBAvg_MHz\fP number of cycles executed divide 106 \fBAvg_MHz\fP number of cycles executed divided by time elapsed. Note that this includes idle-time when 0 instructions are executed.
147 .PP 107 .PP
148 \fBBusy%\fP percent of the measurement interva 108 \fBBusy%\fP percent of the measurement interval that the CPU executes instructions, aka. % of time in "C0" state.
149 .PP 109 .PP
150 \fBBzy_MHz\fP average clock rate while the CPU 110 \fBBzy_MHz\fP average clock rate while the CPU was not idle (ie. in "c0" state).
151 .PP 111 .PP
152 \fBTSC_MHz\fP average MHz that the TSC ran dur 112 \fBTSC_MHz\fP average MHz that the TSC ran during the entire interval.
153 .PP 113 .PP
154 \fBIRQ\fP The number of interrupts serviced by 114 \fBIRQ\fP The number of interrupts serviced by that CPU during the measurement interval. The system total line is the sum of interrupts serviced across all CPUs. turbostat parses /proc/interrupts to generate this summary.
155 .PP 115 .PP
156 \fBSMI\fP The number of System Management Inte 116 \fBSMI\fP The number of System Management Interrupts serviced CPU during the measurement interval. While this counter is actually per-CPU, SMI are triggered on all processors, so the number should be the same for all CPUs.
157 .PP 117 .PP
158 \fBC1, C2, C3...\fP The number times Linux req 118 \fBC1, C2, C3...\fP The number times Linux requested the C1, C2, C3 idle state during the measurement interval. The system summary line shows the sum for all CPUs. These are C-state names as exported in /sys/devices/system/cpu/cpu*/cpuidle/state*/name. While their names are generic, their attributes are processor specific. They the system description section of output shows what MWAIT sub-states they are mapped to on each system.
159 .PP 119 .PP
160 \fBC1%, C2%, C3%\fP The residency percentage t 120 \fBC1%, C2%, C3%\fP The residency percentage that Linux requested C1, C2, C3.... The system summary is the average of all CPUs in the system. Note that these are software, reflecting what was requested. The hardware counters reflect what was actually achieved.
161 .PP 121 .PP
162 \fBCPU%c1, CPU%c3, CPU%c6, CPU%c7\fP show the 122 \fBCPU%c1, CPU%c3, CPU%c6, CPU%c7\fP show the percentage residency in hardware core idle states. These numbers are from hardware residency counters.
163 .PP 123 .PP
164 \fBCoreTmp\fP Degrees Celsius reported by the 124 \fBCoreTmp\fP Degrees Celsius reported by the per-core Digital Thermal Sensor.
165 .PP 125 .PP
166 \fBPkgTmp\fP Degrees Celsius reported by the p 126 \fBPkgTmp\fP Degrees Celsius reported by the per-package Package Thermal Monitor.
167 .PP 127 .PP
168 \fBGFX%rc6\fP The percentage of time the GPU i !! 128 \fBGFX%rc6\fP The percentage of time the GPU is in the "render C6" state, rc6, during the measurement interval. From /sys/class/drm/card0/power/rc6_residency_ms.
169 .PP <<
170 \fBGFXMHz\fP Instantaneous snapshot of what sy <<
171 .PP 129 .PP
172 \fBGFXAMHz\fP Instantaneous snapshot of what s !! 130 \fBGFXMHz\fP Instantaneous snapshot of what sysfs presents at the end of the measurement interval. From /sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz.
173 .PP <<
174 \fBSAM%mc6\fP The percentage of time the SA Me <<
175 .PP <<
176 \fBSAMMHz\fP Instantaneous snapshot of what sy <<
177 .PP <<
178 \fBSAMAMHz\fP Instantaneous snapshot of what s <<
179 .PP 131 .PP
180 \fBPkg%pc2, Pkg%pc3, Pkg%pc6, Pkg%pc7\fP perce 132 \fBPkg%pc2, Pkg%pc3, Pkg%pc6, Pkg%pc7\fP percentage residency in hardware package idle states. These numbers are from hardware residency counters.
181 .PP 133 .PP
182 \fBPkgWatt\fP Watts consumed by the whole pack 134 \fBPkgWatt\fP Watts consumed by the whole package.
183 .PP 135 .PP
184 \fBCorWatt\fP Watts consumed by the core part 136 \fBCorWatt\fP Watts consumed by the core part of the package.
185 .PP 137 .PP
186 \fBGFXWatt\fP Watts consumed by the Graphics p 138 \fBGFXWatt\fP Watts consumed by the Graphics part of the package -- available only on client processors.
187 .PP 139 .PP
188 \fBRAMWatt\fP Watts consumed by the DRAM DIMMS 140 \fBRAMWatt\fP Watts consumed by the DRAM DIMMS -- available only on server processors.
189 .PP 141 .PP
190 \fBPKG_%\fP percent of the interval that RAPL 142 \fBPKG_%\fP percent of the interval that RAPL throttling was active on the Package. Note that the system summary is the sum of the package throttling time, and thus may be higher than 100% on a multi-package system. Note that the meaning of this field is model specific. For example, some hardware increments this counter when RAPL responds to thermal limits, but does not increment this counter when RAPL responds to power limits. Comparing PkgWatt and PkgTmp to system limits is necessary.
191 .PP 143 .PP
192 \fBRAM_%\fP percent of the interval that RAPL 144 \fBRAM_%\fP percent of the interval that RAPL throttling was active on DRAM.
193 .PP 145 .PP
194 \fBUncMHz\fP per-package uncore MHz, instantan !! 146 \fBUncMHz\fP uncore MHz, instantaneous sample.
195 .PP <<
196 \fBUMHz1.0\fP per-package uncore MHz for domai <<
197 .SH TOO MUCH INFORMATION EXAMPLE 147 .SH TOO MUCH INFORMATION EXAMPLE
198 By default, turbostat dumps all possible infor 148 By default, turbostat dumps all possible information -- a system configuration header, followed by columns for all counters.
199 This is ideal for remote debugging, use the "- 149 This is ideal for remote debugging, use the "--out" option to save everything to a text file, and get that file to the expert helping you debug.
200 .PP 150 .PP
201 When you are not interested in all that inform 151 When you are not interested in all that information, and there are several ways to see only what you want. First the "--quiet" option will skip the configuration information, and turbostat will show only the counter columns. Second, you can reduce the columns with the "--hide" and "--show" options. If you use the "--show" option, then turbostat will show only the columns you list. If you use the "--hide" option, turbostat will show all columns, except the ones you list.
202 .PP 152 .PP
203 To find out what columns are available for --s 153 To find out what columns are available for --show and --hide, the "--list" option is available. Usually, the CATEGORY names above are used to refer to groups of counters. Also, for convenience, the special string "sysfs" can be used to refer to all of the sysfs C-state counters at once:
204 .PP 154 .PP
205 .nf 155 .nf
206 sudo ./turbostat --show sysfs --quiet sleep 10 156 sudo ./turbostat --show sysfs --quiet sleep 10
207 10.003837 sec 157 10.003837 sec
208 C1 C1E C3 C6 C7s 158 C1 C1E C3 C6 C7s C1% C1E% C3% C6% C7s%
209 4 21 2 2 459 159 4 21 2 2 459 0.14 0.82 0.00 0.00 98.93
210 1 17 2 2 130 160 1 17 2 2 130 0.00 0.02 0.00 0.00 99.80
211 0 0 0 0 31 161 0 0 0 0 31 0.00 0.00 0.00 0.00 99.95
212 2 1 0 0 52 162 2 1 0 0 52 1.14 6.49 0.00 0.00 92.21
213 1 2 0 0 52 163 1 2 0 0 52 0.00 0.08 0.00 0.00 99.86
214 0 0 0 0 71 164 0 0 0 0 71 0.00 0.00 0.00 0.00 99.89
215 0 0 0 0 25 165 0 0 0 0 25 0.00 0.00 0.00 0.00 99.96
216 0 0 0 0 74 166 0 0 0 0 74 0.00 0.00 0.00 0.00 99.94
217 0 1 0 0 24 167 0 1 0 0 24 0.00 0.00 0.00 0.00 99.84
218 .fi 168 .fi
219 .PP 169 .PP
220 .SH ONE SHOT COMMAND EXAMPLE 170 .SH ONE SHOT COMMAND EXAMPLE
221 If turbostat is invoked with a command, it wil 171 If turbostat is invoked with a command, it will fork that command
222 and output the statistics gathered after the c 172 and output the statistics gathered after the command exits.
223 In this case, turbostat output goes to stderr, 173 In this case, turbostat output goes to stderr, by default.
224 Output can instead be saved to a file using th 174 Output can instead be saved to a file using the --out option.
225 In this example, the "sleep 10" command is for 175 In this example, the "sleep 10" command is forked, and turbostat waits for it to complete before saving all statistics into "ts.out". Note that "sleep 10" is not part of turbostat, but is simply an example of a command that turbostat can fork. The "ts.out" file is what you want to edit in a very wide window, paste into a spreadsheet, or attach to a bugzilla entry.
226 176
227 .nf 177 .nf
228 [root@hsw]# ./turbostat -o ts.out sleep 10 178 [root@hsw]# ./turbostat -o ts.out sleep 10
229 [root@hsw]# 179 [root@hsw]#
230 .fi 180 .fi
231 181
232 .SH PERIODIC INTERVAL EXAMPLE 182 .SH PERIODIC INTERVAL EXAMPLE
233 Without a command to fork, turbostat displays 183 Without a command to fork, turbostat displays statistics ever 5 seconds.
234 Periodic output goes to stdout, by default, un 184 Periodic output goes to stdout, by default, unless --out is used to specify an output file.
235 The 5-second interval can be changed with the 185 The 5-second interval can be changed with the "-i sec" option.
236 .nf 186 .nf
237 sudo turbostat --quiet --show CPU,frequency 187 sudo turbostat --quiet --show CPU,frequency
238 Core CPU Avg_MHz Busy% Bzy_MH 188 Core CPU Avg_MHz Busy% Bzy_MHz TSC_MHz CPU%c7 UncMhz
239 - - 524 12.48 4198 189 - - 524 12.48 4198 3096 74.53 3800
240 0 0 4 0.09 4081 190 0 0 4 0.09 4081 3096 98.88 3800
241 0 4 1 0.02 4063 191 0 4 1 0.02 4063 3096
242 1 1 2 0.06 4063 192 1 1 2 0.06 4063 3096 99.60
243 1 5 2 0.05 4070 193 1 5 2 0.05 4070 3096
244 2 2 4178 99.52 4199 194 2 2 4178 99.52 4199 3096 0.00
245 2 6 3 0.08 4159 195 2 6 3 0.08 4159 3096
246 3 3 1 0.04 4046 196 3 3 1 0.04 4046 3096 99.66
247 3 7 0 0.01 3989 197 3 7 0 0.01 3989 3096
248 Core CPU Avg_MHz Busy% Bzy_MH 198 Core CPU Avg_MHz Busy% Bzy_MHz TSC_MHz CPU%c7 UncMhz
249 - - 525 12.52 4198 199 - - 525 12.52 4198 3096 74.54 3800
250 0 0 4 0.10 4051 200 0 0 4 0.10 4051 3096 99.49 3800
251 0 4 2 0.04 3993 201 0 4 2 0.04 3993 3096
252 1 1 3 0.07 4054 202 1 1 3 0.07 4054 3096 99.56
253 1 5 4 0.10 4018 203 1 5 4 0.10 4018 3096
254 2 2 4178 99.51 4199 204 2 2 4178 99.51 4199 3096 0.00
255 2 6 4 0.09 4143 205 2 6 4 0.09 4143 3096
256 3 3 2 0.06 4026 206 3 3 2 0.06 4026 3096 99.10
257 3 7 7 0.17 4074 207 3 7 7 0.17 4074 3096
258 .fi 208 .fi
259 This example also shows the use of the --show 209 This example also shows the use of the --show option to show only the desired columns.
260 210
261 .SH SYSTEM CONFIGURATION INFORMATION EXAMPLE 211 .SH SYSTEM CONFIGURATION INFORMATION EXAMPLE
262 212
263 By default, turbostat always dumps system conf 213 By default, turbostat always dumps system configuration information
264 before taking measurements. In the example ab 214 before taking measurements. In the example above, "--quiet" is used
265 to suppress that output. Here is an example o 215 to suppress that output. Here is an example of the configuration information:
266 .nf 216 .nf
267 turbostat version 2022.04.16 - Len Brown <lenb@ 217 turbostat version 2022.04.16 - Len Brown <lenb@kernel.org>
268 Kernel command line: BOOT_IMAGE=/boot/vmlinuz- 218 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.18.0-rc6-00001-ge6891250e3b5 ...
269 CPUID(0): GenuineIntel 0x16 CPUID levels 219 CPUID(0): GenuineIntel 0x16 CPUID levels
270 CPUID(1): family:model:stepping 0x6:9e:9 (6:15 220 CPUID(1): family:model:stepping 0x6:9e:9 (6:158:9) microcode 0xea
271 CPUID(0x80000000): max_extended_levels: 0x8000 221 CPUID(0x80000000): max_extended_levels: 0x80000008
272 CPUID(1): SSE3 MONITOR - EIST TM2 TSC MSR ACPI 222 CPUID(1): SSE3 MONITOR - EIST TM2 TSC MSR ACPI-TM HT TM
273 CPUID(6): APERF, TURBO, DTS, PTM, HWP, HWPnoti 223 CPUID(6): APERF, TURBO, DTS, PTM, HWP, HWPnotify, HWPwindow, HWPepp, No-HWPpkg, EPB
274 cpu7: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EI 224 cpu7: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT PREFETCH TURBO)
275 CPUID(7): SGX 225 CPUID(7): SGX
276 cpu7: MSR_IA32_FEATURE_CONTROL: 0x00000005 (Lo 226 cpu7: MSR_IA32_FEATURE_CONTROL: 0x00000005 (Locked )
277 CPUID(0x15): eax_crystal: 2 ebx_tsc: 258 ecx_c 227 CPUID(0x15): eax_crystal: 2 ebx_tsc: 258 ecx_crystal_hz: 0
278 TSC: 3096 MHz (24000000 Hz * 258 / 2 / 1000000 228 TSC: 3096 MHz (24000000 Hz * 258 / 2 / 1000000)
279 CPUID(0x16): base_mhz: 3100 max_mhz: 4200 bus_ 229 CPUID(0x16): base_mhz: 3100 max_mhz: 4200 bus_mhz: 100
280 cpu7: MSR_MISC_PWR_MGMT: 0x00401cc0 (ENable-EI 230 cpu7: MSR_MISC_PWR_MGMT: 0x00401cc0 (ENable-EIST_Coordination DISable-EPB DISable-OOB)
281 RAPL: 5825 sec. Joule Counter Range, at 45 Wat 231 RAPL: 5825 sec. Joule Counter Range, at 45 Watts
282 cpu7: MSR_PLATFORM_INFO: 0x80839f1011f00 232 cpu7: MSR_PLATFORM_INFO: 0x80839f1011f00
283 8 * 100.0 = 800.0 MHz max efficiency frequency 233 8 * 100.0 = 800.0 MHz max efficiency frequency
284 31 * 100.0 = 3100.0 MHz base frequency 234 31 * 100.0 = 3100.0 MHz base frequency
285 cpu7: MSR_IA32_POWER_CTL: 0x002c005d (C1E auto 235 cpu7: MSR_IA32_POWER_CTL: 0x002c005d (C1E auto-promotion: DISabled)
286 cpu7: MSR_TURBO_RATIO_LIMIT: 0x2728292a 236 cpu7: MSR_TURBO_RATIO_LIMIT: 0x2728292a
287 39 * 100.0 = 3900.0 MHz max turbo 4 active cor 237 39 * 100.0 = 3900.0 MHz max turbo 4 active cores
288 40 * 100.0 = 4000.0 MHz max turbo 3 active cor 238 40 * 100.0 = 4000.0 MHz max turbo 3 active cores
289 41 * 100.0 = 4100.0 MHz max turbo 2 active cor 239 41 * 100.0 = 4100.0 MHz max turbo 2 active cores
290 42 * 100.0 = 4200.0 MHz max turbo 1 active cor 240 42 * 100.0 = 4200.0 MHz max turbo 1 active cores
291 cpu7: MSR_CONFIG_TDP_NOMINAL: 0x0000001f (base 241 cpu7: MSR_CONFIG_TDP_NOMINAL: 0x0000001f (base_ratio=31)
292 cpu7: MSR_CONFIG_TDP_LEVEL_1: 0x00000000 () 242 cpu7: MSR_CONFIG_TDP_LEVEL_1: 0x00000000 ()
293 cpu7: MSR_CONFIG_TDP_LEVEL_2: 0x00000000 () 243 cpu7: MSR_CONFIG_TDP_LEVEL_2: 0x00000000 ()
294 cpu7: MSR_CONFIG_TDP_CONTROL: 0x80000000 ( loc 244 cpu7: MSR_CONFIG_TDP_CONTROL: 0x80000000 ( lock=1)
295 cpu7: MSR_TURBO_ACTIVATION_RATIO: 0x00000000 ( 245 cpu7: MSR_TURBO_ACTIVATION_RATIO: 0x00000000 (MAX_NON_TURBO_RATIO=0 lock=0)
296 cpu7: MSR_PKG_CST_CONFIG_CONTROL: 0x1e008008 ( 246 cpu7: MSR_PKG_CST_CONFIG_CONTROL: 0x1e008008 (UNdemote-C3, UNdemote-C1, demote-C3, demote-C1, locked, pkg-cstate-limit=8 (unlimited))
297 Uncore Frequency pkg0 die0: 800 - 3900 MHz (80 247 Uncore Frequency pkg0 die0: 800 - 3900 MHz (800 - 3900 MHz)
298 /dev/cpu_dma_latency: 2000000000 usec (default 248 /dev/cpu_dma_latency: 2000000000 usec (default)
299 current_driver: intel_idle 249 current_driver: intel_idle
300 current_governor: menu 250 current_governor: menu
301 current_governor_ro: menu 251 current_governor_ro: menu
302 cpu7: POLL: CPUIDLE CORE POLL IDLE 252 cpu7: POLL: CPUIDLE CORE POLL IDLE
303 cpu7: C1: MWAIT 0x00 253 cpu7: C1: MWAIT 0x00
304 cpu7: C1E: MWAIT 0x01 254 cpu7: C1E: MWAIT 0x01
305 cpu7: C3: MWAIT 0x10 255 cpu7: C3: MWAIT 0x10
306 cpu7: C6: MWAIT 0x20 256 cpu7: C6: MWAIT 0x20
307 cpu7: C7s: MWAIT 0x33 257 cpu7: C7s: MWAIT 0x33
308 cpu7: C8: MWAIT 0x40 258 cpu7: C8: MWAIT 0x40
309 cpu7: C9: MWAIT 0x50 259 cpu7: C9: MWAIT 0x50
310 cpu7: C10: MWAIT 0x60 260 cpu7: C10: MWAIT 0x60
311 cpu7: cpufreq driver: intel_pstate 261 cpu7: cpufreq driver: intel_pstate
312 cpu7: cpufreq governor: performance 262 cpu7: cpufreq governor: performance
313 cpufreq intel_pstate no_turbo: 0 263 cpufreq intel_pstate no_turbo: 0
314 cpu7: MSR_MISC_FEATURE_CONTROL: 0x00000000 (L2 264 cpu7: MSR_MISC_FEATURE_CONTROL: 0x00000000 (L2-Prefetch L2-Prefetch-pair L1-Prefetch L1-IP-Prefetch)
315 cpu0: MSR_PM_ENABLE: 0x00000001 (HWP) 265 cpu0: MSR_PM_ENABLE: 0x00000001 (HWP)
316 cpu0: MSR_HWP_CAPABILITIES: 0x01101f53 (high 8 266 cpu0: MSR_HWP_CAPABILITIES: 0x01101f53 (high 83 guar 31 eff 16 low 1)
317 cpu0: MSR_HWP_REQUEST: 0x00005353 (min 83 max 267 cpu0: MSR_HWP_REQUEST: 0x00005353 (min 83 max 83 des 0 epp 0x0 window 0x0 pkg 0x0)
318 cpu0: MSR_HWP_INTERRUPT: 0x00000001 (EN_Guaran 268 cpu0: MSR_HWP_INTERRUPT: 0x00000001 (EN_Guaranteed_Perf_Change, Dis_Excursion_Min)
319 cpu0: MSR_HWP_STATUS: 0x00000004 (No-Guarantee 269 cpu0: MSR_HWP_STATUS: 0x00000004 (No-Guaranteed_Perf_Change, No-Excursion_Min)
320 cpu0: EPB: 6 (balanced) 270 cpu0: EPB: 6 (balanced)
321 cpu0: MSR_RAPL_POWER_UNIT: 0x000a0e03 (0.12500 271 cpu0: MSR_RAPL_POWER_UNIT: 0x000a0e03 (0.125000 Watts, 0.000061 Joules, 0.000977 sec.)
322 cpu0: MSR_PKG_POWER_INFO: 0x00000168 (45 W TDP 272 cpu0: MSR_PKG_POWER_INFO: 0x00000168 (45 W TDP, RAPL 0 - 0 W, 0.000000 sec.)
323 cpu0: MSR_PKG_POWER_LIMIT: 0x42820800218208 (U 273 cpu0: MSR_PKG_POWER_LIMIT: 0x42820800218208 (UNlocked)
324 cpu0: PKG Limit #1: ENabled (65.000 Watts, 64. 274 cpu0: PKG Limit #1: ENabled (65.000 Watts, 64.000000 sec, clamp ENabled)
325 cpu0: PKG Limit #2: ENabled (65.000 Watts, 0.0 275 cpu0: PKG Limit #2: ENabled (65.000 Watts, 0.002441* sec, clamp DISabled)
326 cpu0: MSR_VR_CURRENT_CONFIG: 0x00000000 276 cpu0: MSR_VR_CURRENT_CONFIG: 0x00000000
327 cpu0: PKG Limit #4: 0.000000 Watts (UNlocked) 277 cpu0: PKG Limit #4: 0.000000 Watts (UNlocked)
328 cpu0: MSR_DRAM_POWER_LIMIT: 0x5400de00000000 ( 278 cpu0: MSR_DRAM_POWER_LIMIT: 0x5400de00000000 (UNlocked)
329 cpu0: DRAM Limit: DISabled (0.000 Watts, 0.000 279 cpu0: DRAM Limit: DISabled (0.000 Watts, 0.000977 sec, clamp DISabled)
330 cpu0: MSR_PP0_POLICY: 0 280 cpu0: MSR_PP0_POLICY: 0
331 cpu0: MSR_PP0_POWER_LIMIT: 0x00000000 (UNlocke 281 cpu0: MSR_PP0_POWER_LIMIT: 0x00000000 (UNlocked)
332 cpu0: Cores Limit: DISabled (0.000 Watts, 0.00 282 cpu0: Cores Limit: DISabled (0.000 Watts, 0.000977 sec, clamp DISabled)
333 cpu0: MSR_PP1_POLICY: 0 283 cpu0: MSR_PP1_POLICY: 0
334 cpu0: MSR_PP1_POWER_LIMIT: 0x00000000 (UNlocke 284 cpu0: MSR_PP1_POWER_LIMIT: 0x00000000 (UNlocked)
335 cpu0: GFX Limit: DISabled (0.000 Watts, 0.0009 285 cpu0: GFX Limit: DISabled (0.000 Watts, 0.000977 sec, clamp DISabled)
336 cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x00640000 286 cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x00640000 (100 C) (100 default - 0 offset)
337 cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x8820080 287 cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x88200800 (68 C)
338 cpu0: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x0000 288 cpu0: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x00000003 (100 C, 100 C)
339 cpu7: MSR_PKGC3_IRTL: 0x0000884e (valid, 79872 289 cpu7: MSR_PKGC3_IRTL: 0x0000884e (valid, 79872 ns)
340 cpu7: MSR_PKGC6_IRTL: 0x00008876 (valid, 12083 290 cpu7: MSR_PKGC6_IRTL: 0x00008876 (valid, 120832 ns)
341 cpu7: MSR_PKGC7_IRTL: 0x00008894 (valid, 15155 291 cpu7: MSR_PKGC7_IRTL: 0x00008894 (valid, 151552 ns)
342 cpu7: MSR_PKGC8_IRTL: 0x000088fa (valid, 25600 292 cpu7: MSR_PKGC8_IRTL: 0x000088fa (valid, 256000 ns)
343 cpu7: MSR_PKGC9_IRTL: 0x0000894c (valid, 33996 293 cpu7: MSR_PKGC9_IRTL: 0x0000894c (valid, 339968 ns)
344 cpu7: MSR_PKGC10_IRTL: 0x00008bf2 (valid, 1034 294 cpu7: MSR_PKGC10_IRTL: 0x00008bf2 (valid, 1034240 ns)
345 .fi 295 .fi
346 .PP 296 .PP
347 The \fBmax efficiency\fP frequency, a.k.a. Low 297 The \fBmax efficiency\fP frequency, a.k.a. Low Frequency Mode, is the frequency
348 available at the minimum package voltage. The 298 available at the minimum package voltage. The \fBTSC frequency\fP is the base
349 frequency of the processor -- this should matc 299 frequency of the processor -- this should match the brand string
350 in /proc/cpuinfo. This base frequency 300 in /proc/cpuinfo. This base frequency
351 should be sustainable on all CPUs indefinitely 301 should be sustainable on all CPUs indefinitely, given nominal power and cooling.
352 The remaining rows show what maximum turbo fre 302 The remaining rows show what maximum turbo frequency is possible
353 depending on the number of idle cores. Note t 303 depending on the number of idle cores. Note that not all information is
354 available on all processors. 304 available on all processors.
355 .SH ADD COUNTER EXAMPLE 305 .SH ADD COUNTER EXAMPLE
356 Here we limit turbostat to showing just the CP 306 Here we limit turbostat to showing just the CPU number for cpu0 - cpu3.
357 We add a counter showing the 32-bit raw value 307 We add a counter showing the 32-bit raw value of MSR 0x199 (MSR_IA32_PERF_CTL),
358 labeling it with the column header, "PRF_CTRL" 308 labeling it with the column header, "PRF_CTRL", and display it only once,
359 after the conclusion of a 0.1 second sleep. !! 309 afte the conclusion of a 0.1 second sleep.
360 .nf 310 .nf
361 sudo ./turbostat --quiet --cpu 0-3 --show CPU 311 sudo ./turbostat --quiet --cpu 0-3 --show CPU --add msr0x199,u32,raw,PRF_CTRL sleep .1
362 0.101604 sec 312 0.101604 sec
363 CPU PRF_CTRL 313 CPU PRF_CTRL
364 - 0x00000000 314 - 0x00000000
365 0 0x00000c00 315 0 0x00000c00
366 1 0x00000800 316 1 0x00000800
367 2 0x00000a00 317 2 0x00000a00
368 3 0x00000800 318 3 0x00000800
369 319
370 .fi 320 .fi
371 321
372 .SH ADD PERF COUNTER EXAMPLE <<
373 Here we limit turbostat to showing just the CP <<
374 We add a counter showing time spent in C1 core <<
375 labeling it with the column header, "pCPU%c1", <<
376 after the conclusion of 0.1 second sleep. <<
377 We also show CPU%c1 built-in counter that shou <<
378 .nf <<
379 sudo ./turbostat --quiet --cpu 0-3 --show CPU, <<
380 0.102448 sec <<
381 CPU pCPU%c1 CPU%c1 <<
382 - 34.89 34.89 <<
383 0 45.99 45.99 <<
384 1 45.94 45.94 <<
385 2 23.83 23.83 <<
386 3 23.84 23.84 <<
387 <<
388 .fi <<
389 <<
390 .SH ADD PMT COUNTER EXAMPLE <<
391 Here we limit turbostat to showing just the CP <<
392 We add two counters, showing crystal clock cou <<
393 All the parameters passed are based on the met <<
394 <<
395 For the crystal clock count, we <<
396 label it with the column header, "XTAL", <<
397 we set the type to 'raw', to read the number o <<
398 we set the format to 'delta', to display the d <<
399 we set the domain to 'package0', to collect it <<
400 we set the offset to '0', which is a offset of <<
401 we set the lsb and msb to cover all 64 bits of <<
402 and finally we set the guid to '0x1a067102', t <<
403 <<
404 For the DC6 residency counter, we <<
405 label it with the column header, "Die%c6", <<
406 we set the type to 'txtal_time', to obtain the <<
407 we set the format to 'delta', to display the d <<
408 we set the domain to 'package0', to collect it <<
409 we set the offset to '0', which is a offset of <<
410 we set the lsb and msb to cover all 64 bits of <<
411 and finally we set the guid to '0x1a067102', t <<
412 <<
413 .nf <<
414 sudo ./turbostat --quiet --cpu 0 --show CPU -- <<
415 0.104352 sec <<
416 CPU XTAL Die%c6 <<
417 - 0x0000006d4d957ca7 0.00 <<
418 0 0x0000006d4d957ca7 0.00 <<
419 0.102448 sec <<
420 .fi <<
421 <<
422 .SH INPUT 322 .SH INPUT
423 323
424 For interval-mode, turbostat will immediately 324 For interval-mode, turbostat will immediately end the current interval
425 when it sees a newline on standard input. 325 when it sees a newline on standard input.
426 turbostat will then start the next interval. 326 turbostat will then start the next interval.
427 Control-C will be send a SIGINT to turbostat, 327 Control-C will be send a SIGINT to turbostat,
428 which will immediately abort the program with 328 which will immediately abort the program with no further processing.
429 .SH SIGNALS 329 .SH SIGNALS
430 330
431 SIGINT will interrupt interval-mode. 331 SIGINT will interrupt interval-mode.
432 The end-of-interval data will be collected and 332 The end-of-interval data will be collected and displayed before turbostat exits.
433 333
434 SIGUSR1 will end current interval, 334 SIGUSR1 will end current interval,
435 end-of-interval data will be collected and dis 335 end-of-interval data will be collected and displayed before turbostat
436 starts a new interval. 336 starts a new interval.
437 .SH NOTES 337 .SH NOTES
438 338
439 .B "turbostat " 339 .B "turbostat "
440 must be run as root. 340 must be run as root.
441 Alternatively, non-root users can be enabled t 341 Alternatively, non-root users can be enabled to run turbostat this way:
442 342
443 # setcap cap_sys_admin,cap_sys_rawio,cap_sys_n !! 343 # setcap cap_sys_admin,cap_sys_rawio,cap_sys_nice=+ep ./turbostat
444 344
445 # chmod +r /dev/cpu/*/msr 345 # chmod +r /dev/cpu/*/msr
446 346
447 # chmod +r /dev/cpu_dma_latency <<
448 <<
449 .B "turbostat " 347 .B "turbostat "
450 reads hardware counters, but doesn't write the 348 reads hardware counters, but doesn't write them.
451 So it will not interfere with the OS or other 349 So it will not interfere with the OS or other programs, including
452 multiple invocations of itself. 350 multiple invocations of itself.
453 351
454 \fBturbostat \fP 352 \fBturbostat \fP
455 may work poorly on Linux-2.6.20 through 2.6.29 353 may work poorly on Linux-2.6.20 through 2.6.29,
456 as \fBacpi-cpufreq \fPperiodically cleared the 354 as \fBacpi-cpufreq \fPperiodically cleared the APERF and MPERF MSRs
457 in those kernels. 355 in those kernels.
458 356
459 AVG_MHz = APERF_delta/measurement_interval. T 357 AVG_MHz = APERF_delta/measurement_interval. This is the actual
460 number of elapsed cycles divided by the entire 358 number of elapsed cycles divided by the entire sample interval --
461 including idle time. Note that this calculati 359 including idle time. Note that this calculation is resilient
462 to systems lacking a non-stop TSC. 360 to systems lacking a non-stop TSC.
463 361
464 TSC_MHz = TSC_delta/measurement_interval. 362 TSC_MHz = TSC_delta/measurement_interval.
465 On a system with an invariant TSC, this value 363 On a system with an invariant TSC, this value will be constant
466 and will closely match the base frequency valu 364 and will closely match the base frequency value shown
467 in the brand string in /proc/cpuinfo. On a sy 365 in the brand string in /proc/cpuinfo. On a system where
468 the TSC stops in idle, TSC_MHz will drop 366 the TSC stops in idle, TSC_MHz will drop
469 below the processor's base frequency. 367 below the processor's base frequency.
470 368
471 Busy% = MPERF_delta/TSC_delta 369 Busy% = MPERF_delta/TSC_delta
472 370
473 Bzy_MHz = TSC_delta*APERF_delta/MPERF_delta/me !! 371 Bzy_MHz = TSC_delta/APERF_delta/MPERF_delta/measurement_interval
474 372
475 Note that these calculations depend on TSC_del 373 Note that these calculations depend on TSC_delta, so they
476 are not reliable during intervals when TSC_MHz 374 are not reliable during intervals when TSC_MHz is not running at the base frequency.
477 375
478 Turbostat data collection is not atomic. 376 Turbostat data collection is not atomic.
479 Extremely short measurement intervals (much le 377 Extremely short measurement intervals (much less than 1 second),
480 or system activity that prevents turbostat fro 378 or system activity that prevents turbostat from being able
481 to run on all CPUS to quickly collect data, wi 379 to run on all CPUS to quickly collect data, will result in
482 inconsistent results. 380 inconsistent results.
483 381
484 The APERF, MPERF MSRs are defined to count non 382 The APERF, MPERF MSRs are defined to count non-halted cycles.
485 Although it is not guaranteed by the architect 383 Although it is not guaranteed by the architecture, turbostat assumes
486 that they count at TSC rate, which is true on 384 that they count at TSC rate, which is true on all processors tested to date.
487 385
488 .SH REFERENCES 386 .SH REFERENCES
489 Volume 3B: System Programming Guide" 387 Volume 3B: System Programming Guide"
490 https://www.intel.com/products/processor/manua 388 https://www.intel.com/products/processor/manuals/
491 389
492 .SH FILES 390 .SH FILES
493 .ta 391 .ta
494 .nf 392 .nf
495 /dev/cpu/*/msr 393 /dev/cpu/*/msr
496 .fi 394 .fi
497 395
498 .SH "SEE ALSO" 396 .SH "SEE ALSO"
499 msr(4), vmstat(8) 397 msr(4), vmstat(8)
500 .PP 398 .PP
501 .SH AUTHOR 399 .SH AUTHOR
502 .nf 400 .nf
503 Written by Len Brown <len.brown@intel.com> 401 Written by Len Brown <len.brown@intel.com>
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.