1 what: /sys/kernel/mm/damon/ 1 what: /sys/kernel/mm/damon/
2 Date: Mar 2022 2 Date: Mar 2022
3 Contact: SeongJae Park <sj@kernel.org> 3 Contact: SeongJae Park <sj@kernel.org>
4 Description: Interface for Data Access MONi 4 Description: Interface for Data Access MONitoring (DAMON). Contains files
5 for controlling DAMON. For mo 5 for controlling DAMON. For more details on DAMON itself,
6 please refer to Documentation/ 6 please refer to Documentation/admin-guide/mm/damon/index.rst.
7 7
8 What: /sys/kernel/mm/damon/admin/ 8 What: /sys/kernel/mm/damon/admin/
9 Date: Mar 2022 9 Date: Mar 2022
10 Contact: SeongJae Park <sj@kernel.org> 10 Contact: SeongJae Park <sj@kernel.org>
11 Description: Interface for privileged users 11 Description: Interface for privileged users of DAMON. Contains files for
12 controlling DAMON that aimed t 12 controlling DAMON that aimed to be used by privileged users.
13 13
14 What: /sys/kernel/mm/damon/admin/kda 14 What: /sys/kernel/mm/damon/admin/kdamonds/nr_kdamonds
15 Date: Mar 2022 15 Date: Mar 2022
16 Contact: SeongJae Park <sj@kernel.org> 16 Contact: SeongJae Park <sj@kernel.org>
17 Description: Writing a number 'N' to this f 17 Description: Writing a number 'N' to this file creates the number of
18 directories for controlling ea 18 directories for controlling each DAMON worker thread (kdamond)
19 named '0' to 'N-1' under the k 19 named '0' to 'N-1' under the kdamonds/ directory.
20 20
21 What: /sys/kernel/mm/damon/admin/kda 21 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/state
22 Date: Mar 2022 22 Date: Mar 2022
23 Contact: SeongJae Park <sj@kernel.org> 23 Contact: SeongJae Park <sj@kernel.org>
24 Description: Writing 'on' or 'off' to this 24 Description: Writing 'on' or 'off' to this file makes the kdamond starts or
25 stops, respectively. Reading 25 stops, respectively. Reading the file returns the keywords
26 based on the current status. 26 based on the current status. Writing 'commit' to this file
27 makes the kdamond reads the us 27 makes the kdamond reads the user inputs in the sysfs files
28 except 'state' again. Writing !! 28 except 'state' again. Writing 'update_schemes_stats' to the
29 this file makes the kdamond re !! 29 file updates contents of schemes stats files of the kdamond.
30 Writing 'update_schemes_stats' !! 30 Writing 'update_schemes_tried_regions' to the file updates
31 schemes stats files of the kda !! 31 contents of 'tried_regions' directory of every scheme directory
32 'update_schemes_tried_regions' !! 32 of this kdamond. Writing 'update_schemes_tried_bytes' to the
33 'tried_regions' directory of e !! 33 file updates only '.../tried_regions/total_bytes' files of this
34 kdamond. Writing 'update_sche <<
35 updates only '.../tried_region <<
36 kdamond. Writing 'clear_schem 34 kdamond. Writing 'clear_schemes_tried_regions' to the file
37 removes contents of the 'tried !! 35 removes contents of the 'tried_regions' directory.
38 'update_schemes_effective_quot <<
39 '.../quotas/effective_bytes' f <<
40 36
41 What: /sys/kernel/mm/damon/admin/kda 37 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/pid
42 Date: Mar 2022 38 Date: Mar 2022
43 Contact: SeongJae Park <sj@kernel.org> 39 Contact: SeongJae Park <sj@kernel.org>
44 Description: Reading this file returns the 40 Description: Reading this file returns the pid of the kdamond if it is
45 running. 41 running.
46 42
47 What: /sys/kernel/mm/damon/admin/kda 43 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/nr_contexts
48 Date: Mar 2022 44 Date: Mar 2022
49 Contact: SeongJae Park <sj@kernel.org> 45 Contact: SeongJae Park <sj@kernel.org>
50 Description: Writing a number 'N' to this f 46 Description: Writing a number 'N' to this file creates the number of
51 directories for controlling ea 47 directories for controlling each DAMON context named '0' to
52 'N-1' under the contexts/ dire 48 'N-1' under the contexts/ directory.
53 49
54 What: /sys/kernel/mm/damon/admin/kda 50 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/avail_operations
55 Date: Apr 2022 51 Date: Apr 2022
56 Contact: SeongJae Park <sj@kernel.org> 52 Contact: SeongJae Park <sj@kernel.org>
57 Description: Reading this file returns the 53 Description: Reading this file returns the available monitoring operations
58 sets on the currently running 54 sets on the currently running kernel.
59 55
60 What: /sys/kernel/mm/damon/admin/kda 56 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/operations
61 Date: Mar 2022 57 Date: Mar 2022
62 Contact: SeongJae Park <sj@kernel.org> 58 Contact: SeongJae Park <sj@kernel.org>
63 Description: Writing a keyword for a monito 59 Description: Writing a keyword for a monitoring operations set ('vaddr' for
64 virtual address spaces monitor 60 virtual address spaces monitoring, 'fvaddr' for fixed virtual
65 address ranges monitoring, and 61 address ranges monitoring, and 'paddr' for the physical address
66 space monitoring) to this file 62 space monitoring) to this file makes the context to use the
67 operations set. Reading the f 63 operations set. Reading the file returns the keyword for the
68 operations set the context is 64 operations set the context is set to use.
69 65
70 Note that only the operations 66 Note that only the operations sets that listed in
71 'avail_operations' file are va 67 'avail_operations' file are valid inputs.
72 68
73 What: /sys/kernel/mm/damon/admin/kda 69 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/sample_us
74 Date: Mar 2022 70 Date: Mar 2022
75 Contact: SeongJae Park <sj@kernel.org> 71 Contact: SeongJae Park <sj@kernel.org>
76 Description: Writing a value to this file s 72 Description: Writing a value to this file sets the sampling interval of the
77 DAMON context in microseconds 73 DAMON context in microseconds as the value. Reading this file
78 returns the value. 74 returns the value.
79 75
80 What: /sys/kernel/mm/damon/admin/kda 76 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/aggr_us
81 Date: Mar 2022 77 Date: Mar 2022
82 Contact: SeongJae Park <sj@kernel.org> 78 Contact: SeongJae Park <sj@kernel.org>
83 Description: Writing a value to this file s 79 Description: Writing a value to this file sets the aggregation interval of
84 the DAMON context in microseco 80 the DAMON context in microseconds as the value. Reading this
85 file returns the value. 81 file returns the value.
86 82
87 What: /sys/kernel/mm/damon/admin/kda 83 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/update_us
88 Date: Mar 2022 84 Date: Mar 2022
89 Contact: SeongJae Park <sj@kernel.org> 85 Contact: SeongJae Park <sj@kernel.org>
90 Description: Writing a value to this file s 86 Description: Writing a value to this file sets the update interval of the
91 DAMON context in microseconds 87 DAMON context in microseconds as the value. Reading this file
92 returns the value. 88 returns the value.
93 89
94 What: /sys/kernel/mm/damon/admin/kda 90 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/nr_regions/min
95 91
96 WDate: Mar 2022 92 WDate: Mar 2022
97 Contact: SeongJae Park <sj@kernel.org> 93 Contact: SeongJae Park <sj@kernel.org>
98 Description: Writing a value to this file s 94 Description: Writing a value to this file sets the minimum number of
99 monitoring regions of the DAMO 95 monitoring regions of the DAMON context as the value. Reading
100 this file returns the value. 96 this file returns the value.
101 97
102 What: /sys/kernel/mm/damon/admin/kda 98 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/nr_regions/max
103 Date: Mar 2022 99 Date: Mar 2022
104 Contact: SeongJae Park <sj@kernel.org> 100 Contact: SeongJae Park <sj@kernel.org>
105 Description: Writing a value to this file s 101 Description: Writing a value to this file sets the maximum number of
106 monitoring regions of the DAMO 102 monitoring regions of the DAMON context as the value. Reading
107 this file returns the value. 103 this file returns the value.
108 104
109 What: /sys/kernel/mm/damon/admin/kda 105 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/nr_targets
110 Date: Mar 2022 106 Date: Mar 2022
111 Contact: SeongJae Park <sj@kernel.org> 107 Contact: SeongJae Park <sj@kernel.org>
112 Description: Writing a number 'N' to this f 108 Description: Writing a number 'N' to this file creates the number of
113 directories for controlling ea 109 directories for controlling each DAMON target of the context
114 named '0' to 'N-1' under the c 110 named '0' to 'N-1' under the contexts/ directory.
115 111
116 What: /sys/kernel/mm/damon/admin/kda 112 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/pid_target
117 Date: Mar 2022 113 Date: Mar 2022
118 Contact: SeongJae Park <sj@kernel.org> 114 Contact: SeongJae Park <sj@kernel.org>
119 Description: Writing to and reading from th 115 Description: Writing to and reading from this file sets and gets the pid of
120 the target process if the cont 116 the target process if the context is for virtual address spaces
121 monitoring, respectively. 117 monitoring, respectively.
122 118
123 What: /sys/kernel/mm/damon/admin/kda 119 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/nr_regions
124 Date: Mar 2022 120 Date: Mar 2022
125 Contact: SeongJae Park <sj@kernel.org> 121 Contact: SeongJae Park <sj@kernel.org>
126 Description: Writing a number 'N' to this f 122 Description: Writing a number 'N' to this file creates the number of
127 directories for setting each D 123 directories for setting each DAMON target memory region of the
128 context named '0' to 'N-1' und 124 context named '0' to 'N-1' under the regions/ directory. In
129 case of the virtual address sp 125 case of the virtual address space monitoring, DAMON
130 automatically sets the target 126 automatically sets the target memory region based on the target
131 processes' mappings. 127 processes' mappings.
132 128
133 What: /sys/kernel/mm/damon/admin/kda 129 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/<R>/start
134 Date: Mar 2022 130 Date: Mar 2022
135 Contact: SeongJae Park <sj@kernel.org> 131 Contact: SeongJae Park <sj@kernel.org>
136 Description: Writing to and reading from th 132 Description: Writing to and reading from this file sets and gets the start
137 address of the monitoring regi 133 address of the monitoring region.
138 134
139 What: /sys/kernel/mm/damon/admin/kda 135 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/<R>/end
140 Date: Mar 2022 136 Date: Mar 2022
141 Contact: SeongJae Park <sj@kernel.org> 137 Contact: SeongJae Park <sj@kernel.org>
142 Description: Writing to and reading from th 138 Description: Writing to and reading from this file sets and gets the end
143 address of the monitoring regi 139 address of the monitoring region.
144 140
145 What: /sys/kernel/mm/damon/admin/kda 141 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/nr_schemes
146 Date: Mar 2022 142 Date: Mar 2022
147 Contact: SeongJae Park <sj@kernel.org> 143 Contact: SeongJae Park <sj@kernel.org>
148 Description: Writing a number 'N' to this f 144 Description: Writing a number 'N' to this file creates the number of
149 directories for controlling ea 145 directories for controlling each DAMON-based operation scheme
150 of the context named '0' to 'N 146 of the context named '0' to 'N-1' under the schemes/ directory.
151 147
152 What: /sys/kernel/mm/damon/admin/kda 148 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/action
153 Date: Mar 2022 149 Date: Mar 2022
154 Contact: SeongJae Park <sj@kernel.org> 150 Contact: SeongJae Park <sj@kernel.org>
155 Description: Writing to and reading from th 151 Description: Writing to and reading from this file sets and gets the action
156 of the scheme. 152 of the scheme.
157 153
158 What: /sys/kernel/mm/damon/admin/kda <<
159 Date: Jun 2024 <<
160 Contact: SeongJae Park <sj@kernel.org> <<
161 Description: Action's target NUMA node id. <<
162 actions. <<
163 <<
164 What: /sys/kernel/mm/damon/admin/kda 154 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/apply_interval_us
165 Date: Sep 2023 155 Date: Sep 2023
166 Contact: SeongJae Park <sj@kernel.org> 156 Contact: SeongJae Park <sj@kernel.org>
167 Description: Writing a value to this file s 157 Description: Writing a value to this file sets the action apply interval of
168 the scheme in microseconds. R 158 the scheme in microseconds. Reading this file returns the
169 value. 159 value.
170 160
171 What: /sys/kernel/mm/damon/admin/kda 161 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/min
172 Date: Mar 2022 162 Date: Mar 2022
173 Contact: SeongJae Park <sj@kernel.org> 163 Contact: SeongJae Park <sj@kernel.org>
174 Description: Writing to and reading from th 164 Description: Writing to and reading from this file sets and gets the minimum
175 size of the scheme's target re 165 size of the scheme's target regions in bytes.
176 166
177 What: /sys/kernel/mm/damon/admin/kda 167 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/max
178 Date: Mar 2022 168 Date: Mar 2022
179 Contact: SeongJae Park <sj@kernel.org> 169 Contact: SeongJae Park <sj@kernel.org>
180 Description: Writing to and reading from th 170 Description: Writing to and reading from this file sets and gets the maximum
181 size of the scheme's target re 171 size of the scheme's target regions in bytes.
182 172
183 What: /sys/kernel/mm/damon/admin/kda 173 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/nr_accesses/min
184 Date: Mar 2022 174 Date: Mar 2022
185 Contact: SeongJae Park <sj@kernel.org> 175 Contact: SeongJae Park <sj@kernel.org>
186 Description: Writing to and reading from th 176 Description: Writing to and reading from this file sets and gets the manimum
187 'nr_accesses' of the scheme's 177 'nr_accesses' of the scheme's target regions.
188 178
189 What: /sys/kernel/mm/damon/admin/kda 179 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/nr_accesses/max
190 Date: Mar 2022 180 Date: Mar 2022
191 Contact: SeongJae Park <sj@kernel.org> 181 Contact: SeongJae Park <sj@kernel.org>
192 Description: Writing to and reading from th 182 Description: Writing to and reading from this file sets and gets the maximum
193 'nr_accesses' of the scheme's 183 'nr_accesses' of the scheme's target regions.
194 184
195 What: /sys/kernel/mm/damon/admin/kda 185 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/age/min
196 Date: Mar 2022 186 Date: Mar 2022
197 Contact: SeongJae Park <sj@kernel.org> 187 Contact: SeongJae Park <sj@kernel.org>
198 Description: Writing to and reading from th 188 Description: Writing to and reading from this file sets and gets the minimum
199 'age' of the scheme's target r 189 'age' of the scheme's target regions.
200 190
201 What: /sys/kernel/mm/damon/admin/kda 191 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/age/max
202 Date: Mar 2022 192 Date: Mar 2022
203 Contact: SeongJae Park <sj@kernel.org> 193 Contact: SeongJae Park <sj@kernel.org>
204 Description: Writing to and reading from th 194 Description: Writing to and reading from this file sets and gets the maximum
205 'age' of the scheme's target r 195 'age' of the scheme's target regions.
206 196
207 What: /sys/kernel/mm/damon/admin/kda 197 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/ms
208 Date: Mar 2022 198 Date: Mar 2022
209 Contact: SeongJae Park <sj@kernel.org> 199 Contact: SeongJae Park <sj@kernel.org>
210 Description: Writing to and reading from th 200 Description: Writing to and reading from this file sets and gets the time
211 quota of the scheme in millise 201 quota of the scheme in milliseconds.
212 202
213 What: /sys/kernel/mm/damon/admin/kda 203 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/bytes
214 Date: Mar 2022 204 Date: Mar 2022
215 Contact: SeongJae Park <sj@kernel.org> 205 Contact: SeongJae Park <sj@kernel.org>
216 Description: Writing to and reading from th 206 Description: Writing to and reading from this file sets and gets the size
217 quota of the scheme in bytes. 207 quota of the scheme in bytes.
218 208
219 What: /sys/kernel/mm/damon/admin/kda <<
220 Date: Feb 2024 <<
221 Contact: SeongJae Park <sj@kernel.org> <<
222 Description: Reading from this file gets th <<
223 scheme in bytes, which adjuste <<
224 <<
225 What: /sys/kernel/mm/damon/admin/kda 209 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/reset_interval_ms
226 Date: Mar 2022 210 Date: Mar 2022
227 Contact: SeongJae Park <sj@kernel.org> 211 Contact: SeongJae Park <sj@kernel.org>
228 Description: Writing to and reading from th 212 Description: Writing to and reading from this file sets and gets the quotas
229 charge reset interval of the s 213 charge reset interval of the scheme in milliseconds.
230 214
231 What: /sys/kernel/mm/damon/admin/kda <<
232 Date: Nov 2023 <<
233 Contact: SeongJae Park <sj@kernel.org> <<
234 Description: Writing a number 'N' to this f <<
235 directories for setting automa <<
236 aggressiveness named '0' to 'N <<
237 <<
238 What: /sys/kernel/mm/damon/admin/kda <<
239 Date: Feb 2024 <<
240 Contact: SeongJae Park <sj@kernel.org> <<
241 Description: Writing to and reading from th <<
242 auto-tuning goal metric. <<
243 <<
244 What: /sys/kernel/mm/damon/admin/kda <<
245 Date: Nov 2023 <<
246 Contact: SeongJae Park <sj@kernel.org> <<
247 Description: Writing to and reading from th <<
248 value of the goal metric. <<
249 <<
250 What: /sys/kernel/mm/damon/admin/kda <<
251 Date: Nov 2023 <<
252 Contact: SeongJae Park <sj@kernel.org> <<
253 Description: Writing to and reading from th <<
254 value of the goal metric. <<
255 <<
256 What: /sys/kernel/mm/damon/admin/kda 215 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/sz_permil
257 Date: Mar 2022 216 Date: Mar 2022
258 Contact: SeongJae Park <sj@kernel.org> 217 Contact: SeongJae Park <sj@kernel.org>
259 Description: Writing to and reading from th 218 Description: Writing to and reading from this file sets and gets the
260 under-quota limit regions prio 219 under-quota limit regions prioritization weight for 'size' in
261 permil. 220 permil.
262 221
263 What: /sys/kernel/mm/damon/admin/kda 222 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/nr_accesses_permil
264 Date: Mar 2022 223 Date: Mar 2022
265 Contact: SeongJae Park <sj@kernel.org> 224 Contact: SeongJae Park <sj@kernel.org>
266 Description: Writing to and reading from th 225 Description: Writing to and reading from this file sets and gets the
267 under-quota limit regions prio 226 under-quota limit regions prioritization weight for
268 'nr_accesses' in permil. 227 'nr_accesses' in permil.
269 228
270 What: /sys/kernel/mm/damon/admin/kda 229 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/age_permil
271 Date: Mar 2022 230 Date: Mar 2022
272 Contact: SeongJae Park <sj@kernel.org> 231 Contact: SeongJae Park <sj@kernel.org>
273 Description: Writing to and reading from th 232 Description: Writing to and reading from this file sets and gets the
274 under-quota limit regions prio 233 under-quota limit regions prioritization weight for 'age' in
275 permil. 234 permil.
276 235
277 What: /sys/kernel/mm/damon/admin/kda 236 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/metric
278 Date: Mar 2022 237 Date: Mar 2022
279 Contact: SeongJae Park <sj@kernel.org> 238 Contact: SeongJae Park <sj@kernel.org>
280 Description: Writing to and reading from th 239 Description: Writing to and reading from this file sets and gets the metric
281 of the watermarks for the sche 240 of the watermarks for the scheme. The writable/readable
282 keywords for this file are 'no 241 keywords for this file are 'none' for disabling the watermarks
283 feature, or 'free_mem_rate' fo 242 feature, or 'free_mem_rate' for the system's global free memory
284 rate in permil. 243 rate in permil.
285 244
286 What: /sys/kernel/mm/damon/admin/kda 245 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/interval_us
287 Date: Mar 2022 246 Date: Mar 2022
288 Contact: SeongJae Park <sj@kernel.org> 247 Contact: SeongJae Park <sj@kernel.org>
289 Description: Writing to and reading from th 248 Description: Writing to and reading from this file sets and gets the metric
290 check interval of the watermar 249 check interval of the watermarks for the scheme in
291 microseconds. 250 microseconds.
292 251
293 What: /sys/kernel/mm/damon/admin/kda 252 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/high
294 Date: Mar 2022 253 Date: Mar 2022
295 Contact: SeongJae Park <sj@kernel.org> 254 Contact: SeongJae Park <sj@kernel.org>
296 Description: Writing to and reading from th 255 Description: Writing to and reading from this file sets and gets the high
297 watermark of the scheme in per 256 watermark of the scheme in permil.
298 257
299 What: /sys/kernel/mm/damon/admin/kda 258 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/mid
300 Date: Mar 2022 259 Date: Mar 2022
301 Contact: SeongJae Park <sj@kernel.org> 260 Contact: SeongJae Park <sj@kernel.org>
302 Description: Writing to and reading from th 261 Description: Writing to and reading from this file sets and gets the mid
303 watermark of the scheme in per 262 watermark of the scheme in permil.
304 263
305 What: /sys/kernel/mm/damon/admin/kda 264 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/low
306 Date: Mar 2022 265 Date: Mar 2022
307 Contact: SeongJae Park <sj@kernel.org> 266 Contact: SeongJae Park <sj@kernel.org>
308 Description: Writing to and reading from th 267 Description: Writing to and reading from this file sets and gets the low
309 watermark of the scheme in per 268 watermark of the scheme in permil.
310 269
311 What: /sys/kernel/mm/damon/admin/kda 270 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/nr_filters
312 Date: Dec 2022 271 Date: Dec 2022
313 Contact: SeongJae Park <sj@kernel.org> 272 Contact: SeongJae Park <sj@kernel.org>
314 Description: Writing a number 'N' to this f 273 Description: Writing a number 'N' to this file creates the number of
315 directories for setting filter 274 directories for setting filters of the scheme named '0' to
316 'N-1' under the filters/ direc 275 'N-1' under the filters/ directory.
317 276
318 What: /sys/kernel/mm/damon/admin/kda 277 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/type
319 Date: Dec 2022 278 Date: Dec 2022
320 Contact: SeongJae Park <sj@kernel.org> 279 Contact: SeongJae Park <sj@kernel.org>
321 Description: Writing to and reading from th 280 Description: Writing to and reading from this file sets and gets the type of
322 the memory of the interest. ' 281 the memory of the interest. 'anon' for anonymous pages,
323 'memcg' for specific memory cg !! 282 'memcg' for specific memory cgroup, 'addr' for address range
324 'addr' for address range (an o !! 283 (an open-ended interval), or 'target' for DAMON monitoring
325 for DAMON monitoring target ca !! 284 target can be written and read.
326 285
327 What: /sys/kernel/mm/damon/admin/kda 286 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/memcg_path
328 Date: Dec 2022 287 Date: Dec 2022
329 Contact: SeongJae Park <sj@kernel.org> 288 Contact: SeongJae Park <sj@kernel.org>
330 Description: If 'memcg' is written to the ' 289 Description: If 'memcg' is written to the 'type' file, writing to and
331 reading from this file sets an 290 reading from this file sets and gets the path to the memory
332 cgroup of the interest. 291 cgroup of the interest.
333 292
334 What: /sys/kernel/mm/damon/admin/kda 293 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/addr_start
335 Date: Jul 2023 294 Date: Jul 2023
336 Contact: SeongJae Park <sj@kernel.org> 295 Contact: SeongJae Park <sj@kernel.org>
337 Description: If 'addr' is written to the 't 296 Description: If 'addr' is written to the 'type' file, writing to or reading
338 from this file sets or gets th 297 from this file sets or gets the start address of the address
339 range for the filter. 298 range for the filter.
340 299
341 What: /sys/kernel/mm/damon/admin/kda 300 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/addr_end
342 Date: Jul 2023 301 Date: Jul 2023
343 Contact: SeongJae Park <sj@kernel.org> 302 Contact: SeongJae Park <sj@kernel.org>
344 Description: If 'addr' is written to the 't 303 Description: If 'addr' is written to the 'type' file, writing to or reading
345 from this file sets or gets th 304 from this file sets or gets the end address of the address
346 range for the filter. 305 range for the filter.
347 306
348 What: /sys/kernel/mm/damon/admin/kda 307 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/target_idx
349 Date: Dec 2022 308 Date: Dec 2022
350 Contact: SeongJae Park <sj@kernel.org> 309 Contact: SeongJae Park <sj@kernel.org>
351 Description: If 'target' is written to the 310 Description: If 'target' is written to the 'type' file, writing to or
352 reading from this file sets or 311 reading from this file sets or gets the index of the DAMON
353 monitoring target of the inter 312 monitoring target of the interest.
354 313
355 What: /sys/kernel/mm/damon/admin/kda 314 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/matching
356 Date: Dec 2022 315 Date: Dec 2022
357 Contact: SeongJae Park <sj@kernel.org> 316 Contact: SeongJae Park <sj@kernel.org>
358 Description: Writing 'Y' or 'N' to this fil 317 Description: Writing 'Y' or 'N' to this file sets whether to filter out
359 pages that do or do not match 318 pages that do or do not match to the 'type' and 'memcg_path',
360 respectively. Filter out mean 319 respectively. Filter out means the action of the scheme will
361 not be applied to. 320 not be applied to.
362 321
363 What: /sys/kernel/mm/damon/admin/kda 322 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_tried
364 Date: Mar 2022 323 Date: Mar 2022
365 Contact: SeongJae Park <sj@kernel.org> 324 Contact: SeongJae Park <sj@kernel.org>
366 Description: Reading this file returns the 325 Description: Reading this file returns the number of regions that the action
367 of the scheme has tried to be 326 of the scheme has tried to be applied.
368 327
369 What: /sys/kernel/mm/damon/admin/kda 328 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/sz_tried
370 Date: Mar 2022 329 Date: Mar 2022
371 Contact: SeongJae Park <sj@kernel.org> 330 Contact: SeongJae Park <sj@kernel.org>
372 Description: Reading this file returns the 331 Description: Reading this file returns the total size of regions that the
373 action of the scheme has tried 332 action of the scheme has tried to be applied in bytes.
374 333
375 What: /sys/kernel/mm/damon/admin/kda 334 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_applied
376 Date: Mar 2022 335 Date: Mar 2022
377 Contact: SeongJae Park <sj@kernel.org> 336 Contact: SeongJae Park <sj@kernel.org>
378 Description: Reading this file returns the 337 Description: Reading this file returns the number of regions that the action
379 of the scheme has successfully 338 of the scheme has successfully applied.
380 339
381 What: /sys/kernel/mm/damon/admin/kda 340 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/sz_applied
382 Date: Mar 2022 341 Date: Mar 2022
383 Contact: SeongJae Park <sj@kernel.org> 342 Contact: SeongJae Park <sj@kernel.org>
384 Description: Reading this file returns the 343 Description: Reading this file returns the total size of regions that the
385 action of the scheme has succe 344 action of the scheme has successfully applied in bytes.
386 345
387 What: /sys/kernel/mm/damon/admin/kda 346 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/qt_exceeds
388 Date: Mar 2022 347 Date: Mar 2022
389 Contact: SeongJae Park <sj@kernel.org> 348 Contact: SeongJae Park <sj@kernel.org>
390 Description: Reading this file returns the 349 Description: Reading this file returns the number of the exceed events of
391 the scheme's quotas. 350 the scheme's quotas.
392 351
393 What: /sys/kernel/mm/damon/admin/kda 352 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/total_bytes
394 Date: Jul 2023 353 Date: Jul 2023
395 Contact: SeongJae Park <sj@kernel.org> 354 Contact: SeongJae Park <sj@kernel.org>
396 Description: Reading this file returns the 355 Description: Reading this file returns the total amount of memory that
397 corresponding DAMON-based Oper 356 corresponding DAMON-based Operation Scheme's action has tried
398 to be applied. 357 to be applied.
399 358
400 What: /sys/kernel/mm/damon/admin/kda 359 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/start
401 Date: Oct 2022 360 Date: Oct 2022
402 Contact: SeongJae Park <sj@kernel.org> 361 Contact: SeongJae Park <sj@kernel.org>
403 Description: Reading this file returns the 362 Description: Reading this file returns the start address of a memory region
404 that corresponding DAMON-based 363 that corresponding DAMON-based Operation Scheme's action has
405 tried to be applied. 364 tried to be applied.
406 365
407 What: /sys/kernel/mm/damon/admin/kda 366 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/end
408 Date: Oct 2022 367 Date: Oct 2022
409 Contact: SeongJae Park <sj@kernel.org> 368 Contact: SeongJae Park <sj@kernel.org>
410 Description: Reading this file returns the 369 Description: Reading this file returns the end address of a memory region
411 that corresponding DAMON-based 370 that corresponding DAMON-based Operation Scheme's action has
412 tried to be applied. 371 tried to be applied.
413 372
414 What: /sys/kernel/mm/damon/admin/kda 373 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/nr_accesses
415 Date: Oct 2022 374 Date: Oct 2022
416 Contact: SeongJae Park <sj@kernel.org> 375 Contact: SeongJae Park <sj@kernel.org>
417 Description: Reading this file returns the 376 Description: Reading this file returns the 'nr_accesses' of a memory region
418 that corresponding DAMON-based 377 that corresponding DAMON-based Operation Scheme's action has
419 tried to be applied. 378 tried to be applied.
420 379
421 What: /sys/kernel/mm/damon/admin/kda 380 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/age
422 Date: Oct 2022 381 Date: Oct 2022
423 Contact: SeongJae Park <sj@kernel.org> 382 Contact: SeongJae Park <sj@kernel.org>
424 Description: Reading this file returns the 383 Description: Reading this file returns the 'age' of a memory region that
425 corresponding DAMON-based Oper 384 corresponding DAMON-based Operation Scheme's action has tried
426 to be applied. 385 to be applied.
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