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 <<
165 Date: Sep 2023 <<
166 Contact: SeongJae Park <sj@kernel.org> <<
167 Description: Writing a value to this file s <<
168 the scheme in microseconds. R <<
169 value. <<
170 <<
171 What: /sys/kernel/mm/damon/admin/kda 154 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/min
172 Date: Mar 2022 155 Date: Mar 2022
173 Contact: SeongJae Park <sj@kernel.org> 156 Contact: SeongJae Park <sj@kernel.org>
174 Description: Writing to and reading from th 157 Description: Writing to and reading from this file sets and gets the minimum
175 size of the scheme's target re 158 size of the scheme's target regions in bytes.
176 159
177 What: /sys/kernel/mm/damon/admin/kda 160 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/max
178 Date: Mar 2022 161 Date: Mar 2022
179 Contact: SeongJae Park <sj@kernel.org> 162 Contact: SeongJae Park <sj@kernel.org>
180 Description: Writing to and reading from th 163 Description: Writing to and reading from this file sets and gets the maximum
181 size of the scheme's target re 164 size of the scheme's target regions in bytes.
182 165
183 What: /sys/kernel/mm/damon/admin/kda 166 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/nr_accesses/min
184 Date: Mar 2022 167 Date: Mar 2022
185 Contact: SeongJae Park <sj@kernel.org> 168 Contact: SeongJae Park <sj@kernel.org>
186 Description: Writing to and reading from th 169 Description: Writing to and reading from this file sets and gets the manimum
187 'nr_accesses' of the scheme's 170 'nr_accesses' of the scheme's target regions.
188 171
189 What: /sys/kernel/mm/damon/admin/kda 172 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/nr_accesses/max
190 Date: Mar 2022 173 Date: Mar 2022
191 Contact: SeongJae Park <sj@kernel.org> 174 Contact: SeongJae Park <sj@kernel.org>
192 Description: Writing to and reading from th 175 Description: Writing to and reading from this file sets and gets the maximum
193 'nr_accesses' of the scheme's 176 'nr_accesses' of the scheme's target regions.
194 177
195 What: /sys/kernel/mm/damon/admin/kda 178 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/age/min
196 Date: Mar 2022 179 Date: Mar 2022
197 Contact: SeongJae Park <sj@kernel.org> 180 Contact: SeongJae Park <sj@kernel.org>
198 Description: Writing to and reading from th 181 Description: Writing to and reading from this file sets and gets the minimum
199 'age' of the scheme's target r 182 'age' of the scheme's target regions.
200 183
201 What: /sys/kernel/mm/damon/admin/kda 184 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/age/max
202 Date: Mar 2022 185 Date: Mar 2022
203 Contact: SeongJae Park <sj@kernel.org> 186 Contact: SeongJae Park <sj@kernel.org>
204 Description: Writing to and reading from th 187 Description: Writing to and reading from this file sets and gets the maximum
205 'age' of the scheme's target r 188 'age' of the scheme's target regions.
206 189
207 What: /sys/kernel/mm/damon/admin/kda 190 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/ms
208 Date: Mar 2022 191 Date: Mar 2022
209 Contact: SeongJae Park <sj@kernel.org> 192 Contact: SeongJae Park <sj@kernel.org>
210 Description: Writing to and reading from th 193 Description: Writing to and reading from this file sets and gets the time
211 quota of the scheme in millise 194 quota of the scheme in milliseconds.
212 195
213 What: /sys/kernel/mm/damon/admin/kda 196 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/bytes
214 Date: Mar 2022 197 Date: Mar 2022
215 Contact: SeongJae Park <sj@kernel.org> 198 Contact: SeongJae Park <sj@kernel.org>
216 Description: Writing to and reading from th 199 Description: Writing to and reading from this file sets and gets the size
217 quota of the scheme in bytes. 200 quota of the scheme in bytes.
218 201
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 202 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/reset_interval_ms
226 Date: Mar 2022 203 Date: Mar 2022
227 Contact: SeongJae Park <sj@kernel.org> 204 Contact: SeongJae Park <sj@kernel.org>
228 Description: Writing to and reading from th 205 Description: Writing to and reading from this file sets and gets the quotas
229 charge reset interval of the s 206 charge reset interval of the scheme in milliseconds.
230 207
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 208 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/sz_permil
257 Date: Mar 2022 209 Date: Mar 2022
258 Contact: SeongJae Park <sj@kernel.org> 210 Contact: SeongJae Park <sj@kernel.org>
259 Description: Writing to and reading from th 211 Description: Writing to and reading from this file sets and gets the
260 under-quota limit regions prio 212 under-quota limit regions prioritization weight for 'size' in
261 permil. 213 permil.
262 214
263 What: /sys/kernel/mm/damon/admin/kda 215 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/nr_accesses_permil
264 Date: Mar 2022 216 Date: Mar 2022
265 Contact: SeongJae Park <sj@kernel.org> 217 Contact: SeongJae Park <sj@kernel.org>
266 Description: Writing to and reading from th 218 Description: Writing to and reading from this file sets and gets the
267 under-quota limit regions prio 219 under-quota limit regions prioritization weight for
268 'nr_accesses' in permil. 220 'nr_accesses' in permil.
269 221
270 What: /sys/kernel/mm/damon/admin/kda 222 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/age_permil
271 Date: Mar 2022 223 Date: Mar 2022
272 Contact: SeongJae Park <sj@kernel.org> 224 Contact: SeongJae Park <sj@kernel.org>
273 Description: Writing to and reading from th 225 Description: Writing to and reading from this file sets and gets the
274 under-quota limit regions prio 226 under-quota limit regions prioritization weight for 'age' in
275 permil. 227 permil.
276 228
277 What: /sys/kernel/mm/damon/admin/kda 229 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/metric
278 Date: Mar 2022 230 Date: Mar 2022
279 Contact: SeongJae Park <sj@kernel.org> 231 Contact: SeongJae Park <sj@kernel.org>
280 Description: Writing to and reading from th 232 Description: Writing to and reading from this file sets and gets the metric
281 of the watermarks for the sche 233 of the watermarks for the scheme. The writable/readable
282 keywords for this file are 'no 234 keywords for this file are 'none' for disabling the watermarks
283 feature, or 'free_mem_rate' fo 235 feature, or 'free_mem_rate' for the system's global free memory
284 rate in permil. 236 rate in permil.
285 237
286 What: /sys/kernel/mm/damon/admin/kda 238 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/interval_us
287 Date: Mar 2022 239 Date: Mar 2022
288 Contact: SeongJae Park <sj@kernel.org> 240 Contact: SeongJae Park <sj@kernel.org>
289 Description: Writing to and reading from th 241 Description: Writing to and reading from this file sets and gets the metric
290 check interval of the watermar 242 check interval of the watermarks for the scheme in
291 microseconds. 243 microseconds.
292 244
293 What: /sys/kernel/mm/damon/admin/kda 245 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/high
294 Date: Mar 2022 246 Date: Mar 2022
295 Contact: SeongJae Park <sj@kernel.org> 247 Contact: SeongJae Park <sj@kernel.org>
296 Description: Writing to and reading from th 248 Description: Writing to and reading from this file sets and gets the high
297 watermark of the scheme in per 249 watermark of the scheme in permil.
298 250
299 What: /sys/kernel/mm/damon/admin/kda 251 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/mid
300 Date: Mar 2022 252 Date: Mar 2022
301 Contact: SeongJae Park <sj@kernel.org> 253 Contact: SeongJae Park <sj@kernel.org>
302 Description: Writing to and reading from th 254 Description: Writing to and reading from this file sets and gets the mid
303 watermark of the scheme in per 255 watermark of the scheme in permil.
304 256
305 What: /sys/kernel/mm/damon/admin/kda 257 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/low
306 Date: Mar 2022 258 Date: Mar 2022
307 Contact: SeongJae Park <sj@kernel.org> 259 Contact: SeongJae Park <sj@kernel.org>
308 Description: Writing to and reading from th 260 Description: Writing to and reading from this file sets and gets the low
309 watermark of the scheme in per 261 watermark of the scheme in permil.
310 262
311 What: /sys/kernel/mm/damon/admin/kda 263 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/nr_filters
312 Date: Dec 2022 264 Date: Dec 2022
313 Contact: SeongJae Park <sj@kernel.org> 265 Contact: SeongJae Park <sj@kernel.org>
314 Description: Writing a number 'N' to this f 266 Description: Writing a number 'N' to this file creates the number of
315 directories for setting filter 267 directories for setting filters of the scheme named '0' to
316 'N-1' under the filters/ direc 268 'N-1' under the filters/ directory.
317 269
318 What: /sys/kernel/mm/damon/admin/kda 270 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/type
319 Date: Dec 2022 271 Date: Dec 2022
320 Contact: SeongJae Park <sj@kernel.org> 272 Contact: SeongJae Park <sj@kernel.org>
321 Description: Writing to and reading from th 273 Description: Writing to and reading from this file sets and gets the type of
322 the memory of the interest. ' 274 the memory of the interest. 'anon' for anonymous pages,
323 'memcg' for specific memory cg !! 275 'memcg' for specific memory cgroup, 'addr' for address range
324 'addr' for address range (an o !! 276 (an open-ended interval), or 'target' for DAMON monitoring
325 for DAMON monitoring target ca !! 277 target can be written and read.
326 278
327 What: /sys/kernel/mm/damon/admin/kda 279 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/memcg_path
328 Date: Dec 2022 280 Date: Dec 2022
329 Contact: SeongJae Park <sj@kernel.org> 281 Contact: SeongJae Park <sj@kernel.org>
330 Description: If 'memcg' is written to the ' 282 Description: If 'memcg' is written to the 'type' file, writing to and
331 reading from this file sets an 283 reading from this file sets and gets the path to the memory
332 cgroup of the interest. 284 cgroup of the interest.
333 285
334 What: /sys/kernel/mm/damon/admin/kda 286 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/addr_start
335 Date: Jul 2023 287 Date: Jul 2023
336 Contact: SeongJae Park <sj@kernel.org> 288 Contact: SeongJae Park <sj@kernel.org>
337 Description: If 'addr' is written to the 't 289 Description: If 'addr' is written to the 'type' file, writing to or reading
338 from this file sets or gets th 290 from this file sets or gets the start address of the address
339 range for the filter. 291 range for the filter.
340 292
341 What: /sys/kernel/mm/damon/admin/kda 293 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/addr_end
342 Date: Jul 2023 294 Date: Jul 2023
343 Contact: SeongJae Park <sj@kernel.org> 295 Contact: SeongJae Park <sj@kernel.org>
344 Description: If 'addr' is written to the 't 296 Description: If 'addr' is written to the 'type' file, writing to or reading
345 from this file sets or gets th 297 from this file sets or gets the end address of the address
346 range for the filter. 298 range for the filter.
347 299
348 What: /sys/kernel/mm/damon/admin/kda 300 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/target_idx
349 Date: Dec 2022 301 Date: Dec 2022
350 Contact: SeongJae Park <sj@kernel.org> 302 Contact: SeongJae Park <sj@kernel.org>
351 Description: If 'target' is written to the 303 Description: If 'target' is written to the 'type' file, writing to or
352 reading from this file sets or 304 reading from this file sets or gets the index of the DAMON
353 monitoring target of the inter 305 monitoring target of the interest.
354 306
355 What: /sys/kernel/mm/damon/admin/kda 307 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/matching
356 Date: Dec 2022 308 Date: Dec 2022
357 Contact: SeongJae Park <sj@kernel.org> 309 Contact: SeongJae Park <sj@kernel.org>
358 Description: Writing 'Y' or 'N' to this fil 310 Description: Writing 'Y' or 'N' to this file sets whether to filter out
359 pages that do or do not match 311 pages that do or do not match to the 'type' and 'memcg_path',
360 respectively. Filter out mean 312 respectively. Filter out means the action of the scheme will
361 not be applied to. 313 not be applied to.
362 314
363 What: /sys/kernel/mm/damon/admin/kda 315 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_tried
364 Date: Mar 2022 316 Date: Mar 2022
365 Contact: SeongJae Park <sj@kernel.org> 317 Contact: SeongJae Park <sj@kernel.org>
366 Description: Reading this file returns the 318 Description: Reading this file returns the number of regions that the action
367 of the scheme has tried to be 319 of the scheme has tried to be applied.
368 320
369 What: /sys/kernel/mm/damon/admin/kda 321 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/sz_tried
370 Date: Mar 2022 322 Date: Mar 2022
371 Contact: SeongJae Park <sj@kernel.org> 323 Contact: SeongJae Park <sj@kernel.org>
372 Description: Reading this file returns the 324 Description: Reading this file returns the total size of regions that the
373 action of the scheme has tried 325 action of the scheme has tried to be applied in bytes.
374 326
375 What: /sys/kernel/mm/damon/admin/kda 327 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_applied
376 Date: Mar 2022 328 Date: Mar 2022
377 Contact: SeongJae Park <sj@kernel.org> 329 Contact: SeongJae Park <sj@kernel.org>
378 Description: Reading this file returns the 330 Description: Reading this file returns the number of regions that the action
379 of the scheme has successfully 331 of the scheme has successfully applied.
380 332
381 What: /sys/kernel/mm/damon/admin/kda 333 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/sz_applied
382 Date: Mar 2022 334 Date: Mar 2022
383 Contact: SeongJae Park <sj@kernel.org> 335 Contact: SeongJae Park <sj@kernel.org>
384 Description: Reading this file returns the 336 Description: Reading this file returns the total size of regions that the
385 action of the scheme has succe 337 action of the scheme has successfully applied in bytes.
386 338
387 What: /sys/kernel/mm/damon/admin/kda 339 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/qt_exceeds
388 Date: Mar 2022 340 Date: Mar 2022
389 Contact: SeongJae Park <sj@kernel.org> 341 Contact: SeongJae Park <sj@kernel.org>
390 Description: Reading this file returns the 342 Description: Reading this file returns the number of the exceed events of
391 the scheme's quotas. 343 the scheme's quotas.
392 344
393 What: /sys/kernel/mm/damon/admin/kda 345 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/total_bytes
394 Date: Jul 2023 346 Date: Jul 2023
395 Contact: SeongJae Park <sj@kernel.org> 347 Contact: SeongJae Park <sj@kernel.org>
396 Description: Reading this file returns the 348 Description: Reading this file returns the total amount of memory that
397 corresponding DAMON-based Oper 349 corresponding DAMON-based Operation Scheme's action has tried
398 to be applied. 350 to be applied.
399 351
400 What: /sys/kernel/mm/damon/admin/kda 352 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/start
401 Date: Oct 2022 353 Date: Oct 2022
402 Contact: SeongJae Park <sj@kernel.org> 354 Contact: SeongJae Park <sj@kernel.org>
403 Description: Reading this file returns the 355 Description: Reading this file returns the start address of a memory region
404 that corresponding DAMON-based 356 that corresponding DAMON-based Operation Scheme's action has
405 tried to be applied. 357 tried to be applied.
406 358
407 What: /sys/kernel/mm/damon/admin/kda 359 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/end
408 Date: Oct 2022 360 Date: Oct 2022
409 Contact: SeongJae Park <sj@kernel.org> 361 Contact: SeongJae Park <sj@kernel.org>
410 Description: Reading this file returns the 362 Description: Reading this file returns the end address of a memory region
411 that corresponding DAMON-based 363 that corresponding DAMON-based Operation Scheme's action has
412 tried to be applied. 364 tried to be applied.
413 365
414 What: /sys/kernel/mm/damon/admin/kda 366 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/nr_accesses
415 Date: Oct 2022 367 Date: Oct 2022
416 Contact: SeongJae Park <sj@kernel.org> 368 Contact: SeongJae Park <sj@kernel.org>
417 Description: Reading this file returns the 369 Description: Reading this file returns the 'nr_accesses' of a memory region
418 that corresponding DAMON-based 370 that corresponding DAMON-based Operation Scheme's action has
419 tried to be applied. 371 tried to be applied.
420 372
421 What: /sys/kernel/mm/damon/admin/kda 373 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/age
422 Date: Oct 2022 374 Date: Oct 2022
423 Contact: SeongJae Park <sj@kernel.org> 375 Contact: SeongJae Park <sj@kernel.org>
424 Description: Reading this file returns the 376 Description: Reading this file returns the 'age' of a memory region that
425 corresponding DAMON-based Oper 377 corresponding DAMON-based Operation Scheme's action has tried
426 to be applied. 378 to be applied.
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