David Rientjes | 51e95be | 2009-04-24 16:26:25 -0700 | [diff] [blame] | 1 | What: /sys/kernel/slab |
| 2 | Date: May 2007 |
| 3 | KernelVersion: 2.6.22 |
| 4 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 5 | Christoph Lameter <cl@linux-foundation.org> |
| 6 | Description: |
| 7 | The /sys/kernel/slab directory contains a snapshot of the |
| 8 | internal state of the SLUB allocator for each cache. Certain |
| 9 | files may be modified to change the behavior of the cache (and |
| 10 | any cache it aliases, if any). |
| 11 | Users: kernel memory tuning tools |
| 12 | |
| 13 | What: /sys/kernel/slab/cache/aliases |
| 14 | Date: May 2007 |
| 15 | KernelVersion: 2.6.22 |
| 16 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 17 | Christoph Lameter <cl@linux-foundation.org> |
| 18 | Description: |
| 19 | The aliases file is read-only and specifies how many caches |
| 20 | have merged into this cache. |
| 21 | |
| 22 | What: /sys/kernel/slab/cache/align |
| 23 | Date: May 2007 |
| 24 | KernelVersion: 2.6.22 |
| 25 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 26 | Christoph Lameter <cl@linux-foundation.org> |
| 27 | Description: |
| 28 | The align file is read-only and specifies the cache's object |
| 29 | alignment in bytes. |
| 30 | |
| 31 | What: /sys/kernel/slab/cache/alloc_calls |
| 32 | Date: May 2007 |
| 33 | KernelVersion: 2.6.22 |
| 34 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 35 | Christoph Lameter <cl@linux-foundation.org> |
| 36 | Description: |
| 37 | The alloc_calls file is read-only and lists the kernel code |
| 38 | locations from which allocations for this cache were performed. |
| 39 | The alloc_calls file only contains information if debugging is |
| 40 | enabled for that cache (see Documentation/vm/slub.txt). |
| 41 | |
| 42 | What: /sys/kernel/slab/cache/alloc_fastpath |
| 43 | Date: February 2008 |
| 44 | KernelVersion: 2.6.25 |
| 45 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 46 | Christoph Lameter <cl@linux-foundation.org> |
| 47 | Description: |
| 48 | The alloc_fastpath file is read-only and specifies how many |
| 49 | objects have been allocated using the fast path. |
| 50 | Available when CONFIG_SLUB_STATS is enabled. |
| 51 | |
| 52 | What: /sys/kernel/slab/cache/alloc_from_partial |
| 53 | Date: February 2008 |
| 54 | KernelVersion: 2.6.25 |
| 55 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 56 | Christoph Lameter <cl@linux-foundation.org> |
| 57 | Description: |
| 58 | The alloc_from_partial file is read-only and specifies how |
| 59 | many times a cpu slab has been full and it has been refilled |
| 60 | by using a slab from the list of partially used slabs. |
| 61 | Available when CONFIG_SLUB_STATS is enabled. |
| 62 | |
| 63 | What: /sys/kernel/slab/cache/alloc_refill |
| 64 | Date: February 2008 |
| 65 | KernelVersion: 2.6.25 |
| 66 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 67 | Christoph Lameter <cl@linux-foundation.org> |
| 68 | Description: |
| 69 | The alloc_refill file is read-only and specifies how many |
| 70 | times the per-cpu freelist was empty but there were objects |
| 71 | available as the result of remote cpu frees. |
| 72 | Available when CONFIG_SLUB_STATS is enabled. |
| 73 | |
| 74 | What: /sys/kernel/slab/cache/alloc_slab |
| 75 | Date: February 2008 |
| 76 | KernelVersion: 2.6.25 |
| 77 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 78 | Christoph Lameter <cl@linux-foundation.org> |
| 79 | Description: |
| 80 | The alloc_slab file is read-only and specifies how many times |
| 81 | a new slab had to be allocated from the page allocator. |
| 82 | Available when CONFIG_SLUB_STATS is enabled. |
| 83 | |
| 84 | What: /sys/kernel/slab/cache/alloc_slowpath |
| 85 | Date: February 2008 |
| 86 | KernelVersion: 2.6.25 |
| 87 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 88 | Christoph Lameter <cl@linux-foundation.org> |
| 89 | Description: |
| 90 | The alloc_slowpath file is read-only and specifies how many |
| 91 | objects have been allocated using the slow path because of a |
| 92 | refill or allocation from a partial or new slab. |
| 93 | Available when CONFIG_SLUB_STATS is enabled. |
| 94 | |
| 95 | What: /sys/kernel/slab/cache/cache_dma |
| 96 | Date: May 2007 |
| 97 | KernelVersion: 2.6.22 |
| 98 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 99 | Christoph Lameter <cl@linux-foundation.org> |
| 100 | Description: |
| 101 | The cache_dma file is read-only and specifies whether objects |
| 102 | are from ZONE_DMA. |
| 103 | Available when CONFIG_ZONE_DMA is enabled. |
| 104 | |
| 105 | What: /sys/kernel/slab/cache/cpu_slabs |
| 106 | Date: May 2007 |
| 107 | KernelVersion: 2.6.22 |
| 108 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 109 | Christoph Lameter <cl@linux-foundation.org> |
| 110 | Description: |
| 111 | The cpu_slabs file is read-only and displays how many cpu slabs |
| 112 | are active and their NUMA locality. |
| 113 | |
| 114 | What: /sys/kernel/slab/cache/cpuslab_flush |
| 115 | Date: April 2009 |
| 116 | KernelVersion: 2.6.31 |
| 117 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 118 | Christoph Lameter <cl@linux-foundation.org> |
| 119 | Description: |
| 120 | The file cpuslab_flush is read-only and specifies how many |
| 121 | times a cache's cpu slabs have been flushed as the result of |
| 122 | destroying or shrinking a cache, a cpu going offline, or as |
| 123 | the result of forcing an allocation from a certain node. |
| 124 | Available when CONFIG_SLUB_STATS is enabled. |
| 125 | |
| 126 | What: /sys/kernel/slab/cache/ctor |
| 127 | Date: May 2007 |
| 128 | KernelVersion: 2.6.22 |
| 129 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 130 | Christoph Lameter <cl@linux-foundation.org> |
| 131 | Description: |
| 132 | The ctor file is read-only and specifies the cache's object |
| 133 | constructor function, which is invoked for each object when a |
| 134 | new slab is allocated. |
| 135 | |
| 136 | What: /sys/kernel/slab/cache/deactivate_empty |
| 137 | Date: February 2008 |
| 138 | KernelVersion: 2.6.25 |
| 139 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 140 | Christoph Lameter <cl@linux-foundation.org> |
| 141 | Description: |
| 142 | The file deactivate_empty is read-only and specifies how many |
| 143 | times an empty cpu slab was deactivated. |
| 144 | Available when CONFIG_SLUB_STATS is enabled. |
| 145 | |
| 146 | What: /sys/kernel/slab/cache/deactivate_full |
| 147 | Date: February 2008 |
| 148 | KernelVersion: 2.6.25 |
| 149 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 150 | Christoph Lameter <cl@linux-foundation.org> |
| 151 | Description: |
| 152 | The file deactivate_full is read-only and specifies how many |
| 153 | times a full cpu slab was deactivated. |
| 154 | Available when CONFIG_SLUB_STATS is enabled. |
| 155 | |
| 156 | What: /sys/kernel/slab/cache/deactivate_remote_frees |
| 157 | Date: February 2008 |
| 158 | KernelVersion: 2.6.25 |
| 159 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 160 | Christoph Lameter <cl@linux-foundation.org> |
| 161 | Description: |
| 162 | The file deactivate_remote_frees is read-only and specifies how |
| 163 | many times a cpu slab has been deactivated and contained free |
| 164 | objects that were freed remotely. |
| 165 | Available when CONFIG_SLUB_STATS is enabled. |
| 166 | |
| 167 | What: /sys/kernel/slab/cache/deactivate_to_head |
| 168 | Date: February 2008 |
| 169 | KernelVersion: 2.6.25 |
| 170 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 171 | Christoph Lameter <cl@linux-foundation.org> |
| 172 | Description: |
| 173 | The file deactivate_to_head is read-only and specifies how |
| 174 | many times a partial cpu slab was deactivated and added to the |
| 175 | head of its node's partial list. |
| 176 | Available when CONFIG_SLUB_STATS is enabled. |
| 177 | |
| 178 | What: /sys/kernel/slab/cache/deactivate_to_tail |
| 179 | Date: February 2008 |
| 180 | KernelVersion: 2.6.25 |
| 181 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 182 | Christoph Lameter <cl@linux-foundation.org> |
| 183 | Description: |
| 184 | The file deactivate_to_tail is read-only and specifies how |
| 185 | many times a partial cpu slab was deactivated and added to the |
| 186 | tail of its node's partial list. |
| 187 | Available when CONFIG_SLUB_STATS is enabled. |
| 188 | |
| 189 | What: /sys/kernel/slab/cache/destroy_by_rcu |
| 190 | Date: May 2007 |
| 191 | KernelVersion: 2.6.22 |
| 192 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 193 | Christoph Lameter <cl@linux-foundation.org> |
| 194 | Description: |
| 195 | The destroy_by_rcu file is read-only and specifies whether |
| 196 | slabs (not objects) are freed by rcu. |
| 197 | |
| 198 | What: /sys/kernel/slab/cache/free_add_partial |
| 199 | Date: February 2008 |
| 200 | KernelVersion: 2.6.25 |
| 201 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 202 | Christoph Lameter <cl@linux-foundation.org> |
| 203 | Description: |
| 204 | The file free_add_partial is read-only and specifies how many |
| 205 | times an object has been freed in a full slab so that it had to |
| 206 | added to its node's partial list. |
| 207 | Available when CONFIG_SLUB_STATS is enabled. |
| 208 | |
| 209 | What: /sys/kernel/slab/cache/free_calls |
| 210 | Date: May 2007 |
| 211 | KernelVersion: 2.6.22 |
| 212 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 213 | Christoph Lameter <cl@linux-foundation.org> |
| 214 | Description: |
| 215 | The free_calls file is read-only and lists the locations of |
| 216 | object frees if slab debugging is enabled (see |
| 217 | Documentation/vm/slub.txt). |
| 218 | |
| 219 | What: /sys/kernel/slab/cache/free_fastpath |
| 220 | Date: February 2008 |
| 221 | KernelVersion: 2.6.25 |
| 222 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 223 | Christoph Lameter <cl@linux-foundation.org> |
| 224 | Description: |
| 225 | The free_fastpath file is read-only and specifies how many |
| 226 | objects have been freed using the fast path because it was an |
| 227 | object from the cpu slab. |
| 228 | Available when CONFIG_SLUB_STATS is enabled. |
| 229 | |
| 230 | What: /sys/kernel/slab/cache/free_frozen |
| 231 | Date: February 2008 |
| 232 | KernelVersion: 2.6.25 |
| 233 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 234 | Christoph Lameter <cl@linux-foundation.org> |
| 235 | Description: |
| 236 | The free_frozen file is read-only and specifies how many |
| 237 | objects have been freed to a frozen slab (i.e. a remote cpu |
| 238 | slab). |
| 239 | Available when CONFIG_SLUB_STATS is enabled. |
| 240 | |
| 241 | What: /sys/kernel/slab/cache/free_remove_partial |
| 242 | Date: February 2008 |
| 243 | KernelVersion: 2.6.25 |
| 244 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 245 | Christoph Lameter <cl@linux-foundation.org> |
| 246 | Description: |
| 247 | The file free_remove_partial is read-only and specifies how |
| 248 | many times an object has been freed to a now-empty slab so |
| 249 | that it had to be removed from its node's partial list. |
| 250 | Available when CONFIG_SLUB_STATS is enabled. |
| 251 | |
| 252 | What: /sys/kernel/slab/cache/free_slab |
| 253 | Date: February 2008 |
| 254 | KernelVersion: 2.6.25 |
| 255 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 256 | Christoph Lameter <cl@linux-foundation.org> |
| 257 | Description: |
| 258 | The free_slab file is read-only and specifies how many times an |
| 259 | empty slab has been freed back to the page allocator. |
| 260 | Available when CONFIG_SLUB_STATS is enabled. |
| 261 | |
| 262 | What: /sys/kernel/slab/cache/free_slowpath |
| 263 | Date: February 2008 |
| 264 | KernelVersion: 2.6.25 |
| 265 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 266 | Christoph Lameter <cl@linux-foundation.org> |
| 267 | Description: |
| 268 | The free_slowpath file is read-only and specifies how many |
| 269 | objects have been freed using the slow path (i.e. to a full or |
| 270 | partial slab). |
| 271 | Available when CONFIG_SLUB_STATS is enabled. |
| 272 | |
| 273 | What: /sys/kernel/slab/cache/hwcache_align |
| 274 | Date: May 2007 |
| 275 | KernelVersion: 2.6.22 |
| 276 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 277 | Christoph Lameter <cl@linux-foundation.org> |
| 278 | Description: |
| 279 | The hwcache_align file is read-only and specifies whether |
| 280 | objects are aligned on cachelines. |
| 281 | |
| 282 | What: /sys/kernel/slab/cache/min_partial |
| 283 | Date: February 2009 |
| 284 | KernelVersion: 2.6.30 |
| 285 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 286 | David Rientjes <rientjes@google.com> |
| 287 | Description: |
| 288 | The min_partial file specifies how many empty slabs shall |
| 289 | remain on a node's partial list to avoid the overhead of |
| 290 | allocating new slabs. Such slabs may be reclaimed by utilizing |
| 291 | the shrink file. |
| 292 | |
| 293 | What: /sys/kernel/slab/cache/object_size |
| 294 | Date: May 2007 |
| 295 | KernelVersion: 2.6.22 |
| 296 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 297 | Christoph Lameter <cl@linux-foundation.org> |
| 298 | Description: |
| 299 | The object_size file is read-only and specifies the cache's |
| 300 | object size. |
| 301 | |
| 302 | What: /sys/kernel/slab/cache/objects |
| 303 | Date: May 2007 |
| 304 | KernelVersion: 2.6.22 |
| 305 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 306 | Christoph Lameter <cl@linux-foundation.org> |
| 307 | Description: |
| 308 | The objects file is read-only and displays how many objects are |
| 309 | active and from which nodes they are from. |
| 310 | |
| 311 | What: /sys/kernel/slab/cache/objects_partial |
| 312 | Date: April 2008 |
| 313 | KernelVersion: 2.6.26 |
| 314 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 315 | Christoph Lameter <cl@linux-foundation.org> |
| 316 | Description: |
| 317 | The objects_partial file is read-only and displays how many |
| 318 | objects are on partial slabs and from which nodes they are |
| 319 | from. |
| 320 | |
| 321 | What: /sys/kernel/slab/cache/objs_per_slab |
| 322 | Date: May 2007 |
| 323 | KernelVersion: 2.6.22 |
| 324 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 325 | Christoph Lameter <cl@linux-foundation.org> |
| 326 | Description: |
| 327 | The file objs_per_slab is read-only and specifies how many |
| 328 | objects may be allocated from a single slab of the order |
| 329 | specified in /sys/kernel/slab/cache/order. |
| 330 | |
| 331 | What: /sys/kernel/slab/cache/order |
| 332 | Date: May 2007 |
| 333 | KernelVersion: 2.6.22 |
| 334 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 335 | Christoph Lameter <cl@linux-foundation.org> |
| 336 | Description: |
| 337 | The order file specifies the page order at which new slabs are |
| 338 | allocated. It is writable and can be changed to increase the |
| 339 | number of objects per slab. If a slab cannot be allocated |
| 340 | because of fragmentation, SLUB will retry with the minimum order |
| 341 | possible depending on its characteristics. |
| 342 | |
| 343 | What: /sys/kernel/slab/cache/order_fallback |
| 344 | Date: April 2008 |
| 345 | KernelVersion: 2.6.26 |
| 346 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 347 | Christoph Lameter <cl@linux-foundation.org> |
| 348 | Description: |
| 349 | The file order_fallback is read-only and specifies how many |
| 350 | times an allocation of a new slab has not been possible at the |
| 351 | cache's order and instead fallen back to its minimum possible |
| 352 | order. |
| 353 | Available when CONFIG_SLUB_STATS is enabled. |
| 354 | |
| 355 | What: /sys/kernel/slab/cache/partial |
| 356 | Date: May 2007 |
| 357 | KernelVersion: 2.6.22 |
| 358 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 359 | Christoph Lameter <cl@linux-foundation.org> |
| 360 | Description: |
| 361 | The partial file is read-only and displays how long many |
| 362 | partial slabs there are and how long each node's list is. |
| 363 | |
| 364 | What: /sys/kernel/slab/cache/poison |
| 365 | Date: May 2007 |
| 366 | KernelVersion: 2.6.22 |
| 367 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 368 | Christoph Lameter <cl@linux-foundation.org> |
| 369 | Description: |
| 370 | The poison file specifies whether objects should be poisoned |
| 371 | when a new slab is allocated. |
| 372 | |
| 373 | What: /sys/kernel/slab/cache/reclaim_account |
| 374 | Date: May 2007 |
| 375 | KernelVersion: 2.6.22 |
| 376 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 377 | Christoph Lameter <cl@linux-foundation.org> |
| 378 | Description: |
| 379 | The reclaim_account file specifies whether the cache's objects |
| 380 | are reclaimable (and grouped by their mobility). |
| 381 | |
| 382 | What: /sys/kernel/slab/cache/red_zone |
| 383 | Date: May 2007 |
| 384 | KernelVersion: 2.6.22 |
| 385 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 386 | Christoph Lameter <cl@linux-foundation.org> |
| 387 | Description: |
| 388 | The red_zone file specifies whether the cache's objects are red |
| 389 | zoned. |
| 390 | |
| 391 | What: /sys/kernel/slab/cache/remote_node_defrag_ratio |
| 392 | Date: January 2008 |
| 393 | KernelVersion: 2.6.25 |
| 394 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 395 | Christoph Lameter <cl@linux-foundation.org> |
| 396 | Description: |
| 397 | The file remote_node_defrag_ratio specifies the percentage of |
| 398 | times SLUB will attempt to refill the cpu slab with a partial |
| 399 | slab from a remote node as opposed to allocating a new slab on |
| 400 | the local node. This reduces the amount of wasted memory over |
| 401 | the entire system but can be expensive. |
| 402 | Available when CONFIG_NUMA is enabled. |
| 403 | |
| 404 | What: /sys/kernel/slab/cache/sanity_checks |
| 405 | Date: May 2007 |
| 406 | KernelVersion: 2.6.22 |
| 407 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 408 | Christoph Lameter <cl@linux-foundation.org> |
| 409 | Description: |
| 410 | The sanity_checks file specifies whether expensive checks |
| 411 | should be performed on free and, at minimum, enables double free |
| 412 | checks. Caches that enable sanity_checks cannot be merged with |
| 413 | caches that do not. |
| 414 | |
| 415 | What: /sys/kernel/slab/cache/shrink |
| 416 | Date: May 2007 |
| 417 | KernelVersion: 2.6.22 |
| 418 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 419 | Christoph Lameter <cl@linux-foundation.org> |
| 420 | Description: |
| 421 | The shrink file is written when memory should be reclaimed from |
| 422 | a cache. Empty partial slabs are freed and the partial list is |
| 423 | sorted so the slabs with the fewest available objects are used |
| 424 | first. |
| 425 | |
| 426 | What: /sys/kernel/slab/cache/slab_size |
| 427 | Date: May 2007 |
| 428 | KernelVersion: 2.6.22 |
| 429 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 430 | Christoph Lameter <cl@linux-foundation.org> |
| 431 | Description: |
| 432 | The slab_size file is read-only and specifies the object size |
| 433 | with metadata (debugging information and alignment) in bytes. |
| 434 | |
| 435 | What: /sys/kernel/slab/cache/slabs |
| 436 | Date: May 2007 |
| 437 | KernelVersion: 2.6.22 |
| 438 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 439 | Christoph Lameter <cl@linux-foundation.org> |
| 440 | Description: |
| 441 | The slabs file is read-only and displays how long many slabs |
| 442 | there are (both cpu and partial) and from which nodes they are |
| 443 | from. |
| 444 | |
| 445 | What: /sys/kernel/slab/cache/store_user |
| 446 | Date: May 2007 |
| 447 | KernelVersion: 2.6.22 |
| 448 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 449 | Christoph Lameter <cl@linux-foundation.org> |
| 450 | Description: |
| 451 | The store_user file specifies whether the location of |
| 452 | allocation or free should be tracked for a cache. |
| 453 | |
| 454 | What: /sys/kernel/slab/cache/total_objects |
| 455 | Date: April 2008 |
| 456 | KernelVersion: 2.6.26 |
| 457 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 458 | Christoph Lameter <cl@linux-foundation.org> |
| 459 | Description: |
| 460 | The total_objects file is read-only and displays how many total |
| 461 | objects a cache has and from which nodes they are from. |
| 462 | |
| 463 | What: /sys/kernel/slab/cache/trace |
| 464 | Date: May 2007 |
| 465 | KernelVersion: 2.6.22 |
| 466 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 467 | Christoph Lameter <cl@linux-foundation.org> |
| 468 | Description: |
| 469 | The trace file specifies whether object allocations and frees |
| 470 | should be traced. |
| 471 | |
| 472 | What: /sys/kernel/slab/cache/validate |
| 473 | Date: May 2007 |
| 474 | KernelVersion: 2.6.22 |
| 475 | Contact: Pekka Enberg <penberg@cs.helsinki.fi>, |
| 476 | Christoph Lameter <cl@linux-foundation.org> |
| 477 | Description: |
| 478 | Writing to the validate file causes SLUB to traverse all of its |
| 479 | cache's objects and check the validity of metadata. |