svn commit: r260306 - stable/10/sys/vm
Alexander Motin
mav at FreeBSD.org
Sat Jan 4 23:43:18 UTC 2014
Author: mav
Date: Sat Jan 4 23:43:18 2014
New Revision: 260306
URL: http://svnweb.freebsd.org/changeset/base/260306
Log:
MFC r258716:
- Add bucket size column to `show uma` DDB command.
- Add `show umacache` command to show alike stats for cache-only UMA zones.
Modified:
stable/10/sys/vm/uma_core.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/vm/uma_core.c
==============================================================================
--- stable/10/sys/vm/uma_core.c Sat Jan 4 23:42:24 2014 (r260305)
+++ stable/10/sys/vm/uma_core.c Sat Jan 4 23:43:18 2014 (r260306)
@@ -131,6 +131,10 @@ static int bucketdisable = 1;
/* Linked list of all kegs in the system */
static LIST_HEAD(,uma_keg) uma_kegs = LIST_HEAD_INITIALIZER(uma_kegs);
+/* Linked list of all cache-only zones in the system */
+static LIST_HEAD(,uma_zone) uma_cachezones =
+ LIST_HEAD_INITIALIZER(uma_cachezones);
+
/* This mutex protects the keg list */
static struct mtx_padalign uma_mtx;
@@ -1590,6 +1594,9 @@ zone_ctor(void *mem, int size, void *uda
zone->uz_release = arg->release;
zone->uz_arg = arg->arg;
zone->uz_lockptr = &zone->uz_lock;
+ mtx_lock(&uma_mtx);
+ LIST_INSERT_HEAD(&uma_cachezones, zone, uz_link);
+ mtx_unlock(&uma_mtx);
goto out;
}
@@ -3467,8 +3474,8 @@ DB_SHOW_COMMAND(uma, db_show_uma)
uma_zone_t z;
int cachefree;
- db_printf("%18s %8s %8s %8s %12s %8s\n", "Zone", "Size", "Used", "Free",
- "Requests", "Sleeps");
+ db_printf("%18s %8s %8s %8s %12s %8s %8s\n", "Zone", "Size", "Used",
+ "Free", "Requests", "Sleeps", "Bucket");
LIST_FOREACH(kz, &uma_kegs, uk_link) {
LIST_FOREACH(z, &kz->uk_zones, uz_link) {
if (kz->uk_flags & UMA_ZFLAG_INTERNAL) {
@@ -3484,13 +3491,35 @@ DB_SHOW_COMMAND(uma, db_show_uma)
cachefree += kz->uk_free;
LIST_FOREACH(bucket, &z->uz_buckets, ub_link)
cachefree += bucket->ub_cnt;
- db_printf("%18s %8ju %8jd %8d %12ju %8ju\n", z->uz_name,
- (uintmax_t)kz->uk_size,
+ db_printf("%18s %8ju %8jd %8d %12ju %8ju %8u\n",
+ z->uz_name, (uintmax_t)kz->uk_size,
(intmax_t)(allocs - frees), cachefree,
- (uintmax_t)allocs, sleeps);
+ (uintmax_t)allocs, sleeps, z->uz_count);
if (db_pager_quit)
return;
}
}
}
+
+DB_SHOW_COMMAND(umacache, db_show_umacache)
+{
+ uint64_t allocs, frees;
+ uma_bucket_t bucket;
+ uma_zone_t z;
+ int cachefree;
+
+ db_printf("%18s %8s %8s %8s %12s %8s\n", "Zone", "Size", "Used", "Free",
+ "Requests", "Bucket");
+ LIST_FOREACH(z, &uma_cachezones, uz_link) {
+ uma_zone_sumstat(z, &cachefree, &allocs, &frees, NULL);
+ LIST_FOREACH(bucket, &z->uz_buckets, ub_link)
+ cachefree += bucket->ub_cnt;
+ db_printf("%18s %8ju %8jd %8d %12ju %8u\n",
+ z->uz_name, (uintmax_t)z->uz_size,
+ (intmax_t)(allocs - frees), cachefree,
+ (uintmax_t)allocs, z->uz_count);
+ if (db_pager_quit)
+ return;
+ }
+}
#endif
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