| arc.c (252142) | arc.c (252749) |
|---|---|
| 1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE --- 275 unchanged lines hidden (view full) --- 284 kstat_named_t arcstat_mru_hits; 285 kstat_named_t arcstat_mru_ghost_hits; 286 kstat_named_t arcstat_mfu_hits; 287 kstat_named_t arcstat_mfu_ghost_hits; 288 kstat_named_t arcstat_allocated; 289 kstat_named_t arcstat_deleted; 290 kstat_named_t arcstat_stolen; 291 kstat_named_t arcstat_recycle_miss; | 1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE --- 275 unchanged lines hidden (view full) --- 284 kstat_named_t arcstat_mru_hits; 285 kstat_named_t arcstat_mru_ghost_hits; 286 kstat_named_t arcstat_mfu_hits; 287 kstat_named_t arcstat_mfu_ghost_hits; 288 kstat_named_t arcstat_allocated; 289 kstat_named_t arcstat_deleted; 290 kstat_named_t arcstat_stolen; 291 kstat_named_t arcstat_recycle_miss; |
| 292 /* 293 * Number of buffers that could not be evicted because the hash lock 294 * was held by another thread. The lock may not necessarily be held 295 * by something using the same buffer, since hash locks are shared 296 * by multiple buffers. 297 */ |
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| 292 kstat_named_t arcstat_mutex_miss; | 298 kstat_named_t arcstat_mutex_miss; |
| 299 /* 300 * Number of buffers skipped because they have I/O in progress, are 301 * indrect prefetch buffers that have not lived long enough, or are 302 * not from the spa we're trying to evict from. 303 */ |
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| 293 kstat_named_t arcstat_evict_skip; 294 kstat_named_t arcstat_evict_l2_cached; 295 kstat_named_t arcstat_evict_l2_eligible; 296 kstat_named_t arcstat_evict_l2_ineligible; 297 kstat_named_t arcstat_hash_elements; 298 kstat_named_t arcstat_hash_elements_max; 299 kstat_named_t arcstat_hash_collisions; 300 kstat_named_t arcstat_hash_chains; --- 2941 unchanged lines hidden (view full) --- 3242 */ 3243 if (vdev_is_dead(vd) || 3244 !spa_config_tryenter(spa, SCL_L2ARC, vd, RW_READER)) 3245 vd = NULL; 3246 } 3247 3248 mutex_exit(hash_lock); 3249 | 304 kstat_named_t arcstat_evict_skip; 305 kstat_named_t arcstat_evict_l2_cached; 306 kstat_named_t arcstat_evict_l2_eligible; 307 kstat_named_t arcstat_evict_l2_ineligible; 308 kstat_named_t arcstat_hash_elements; 309 kstat_named_t arcstat_hash_elements_max; 310 kstat_named_t arcstat_hash_collisions; 311 kstat_named_t arcstat_hash_chains; --- 2941 unchanged lines hidden (view full) --- 3253 */ 3254 if (vdev_is_dead(vd) || 3255 !spa_config_tryenter(spa, SCL_L2ARC, vd, RW_READER)) 3256 vd = NULL; 3257 } 3258 3259 mutex_exit(hash_lock); 3260 |
| 3261 /* 3262 * At this point, we have a level 1 cache miss. Try again in 3263 * L2ARC if possible. 3264 */ |
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| 3250 ASSERT3U(hdr->b_size, ==, size); 3251 DTRACE_PROBE4(arc__miss, arc_buf_hdr_t *, hdr, blkptr_t *, bp, 3252 uint64_t, size, zbookmark_t *, zb); 3253 ARCSTAT_BUMP(arcstat_misses); 3254 ARCSTAT_CONDSTAT(!(hdr->b_flags & ARC_PREFETCH), 3255 demand, prefetch, hdr->b_type != ARC_BUFC_METADATA, 3256 data, metadata, misses); 3257#ifdef _KERNEL --- 225 unchanged lines hidden (view full) --- 3483 buf->b_private = NULL; 3484 buf->b_hdr = NULL; 3485 buf->b_next = NULL; 3486 kmem_cache_free(buf_cache, buf); 3487 return (1); 3488} 3489 3490/* | 3265 ASSERT3U(hdr->b_size, ==, size); 3266 DTRACE_PROBE4(arc__miss, arc_buf_hdr_t *, hdr, blkptr_t *, bp, 3267 uint64_t, size, zbookmark_t *, zb); 3268 ARCSTAT_BUMP(arcstat_misses); 3269 ARCSTAT_CONDSTAT(!(hdr->b_flags & ARC_PREFETCH), 3270 demand, prefetch, hdr->b_type != ARC_BUFC_METADATA, 3271 data, metadata, misses); 3272#ifdef _KERNEL --- 225 unchanged lines hidden (view full) --- 3498 buf->b_private = NULL; 3499 buf->b_hdr = NULL; 3500 buf->b_next = NULL; 3501 kmem_cache_free(buf_cache, buf); 3502 return (1); 3503} 3504 3505/* |
| 3491 * Release this buffer from the cache. This must be done 3492 * after a read and prior to modifying the buffer contents. | 3506 * Release this buffer from the cache, making it an anonymous buffer. This 3507 * must be done after a read and prior to modifying the buffer contents. |
| 3493 * If the buffer has more than one reference, we must make 3494 * a new hdr for the buffer. 3495 */ 3496void 3497arc_release(arc_buf_t *buf, void *tag) 3498{ 3499 arc_buf_hdr_t *hdr; 3500 kmutex_t *hash_lock = NULL; --- 2012 unchanged lines hidden --- | 3508 * If the buffer has more than one reference, we must make 3509 * a new hdr for the buffer. 3510 */ 3511void 3512arc_release(arc_buf_t *buf, void *tag) 3513{ 3514 arc_buf_hdr_t *hdr; 3515 kmutex_t *hash_lock = NULL; --- 2012 unchanged lines hidden --- |