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Add missing arcstats

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The following useful values were missing the arcstats.  This change
adds them in to provide greater visibility in to the arcs behavior.

arc_no_grow                     4    0
arc_tempreserve                 4    0
arc_loaned_bytes                4    0
arc_meta_used                   4    624774592
arc_meta_limit                  4    400785408
arc_meta_max                    4    625594176
This commit is contained in:
Brian Behlendorf 2011-03-24 12:13:55 -07:00
parent c85b224faf
commit 1834f2d8b7
1 changed files with 20 additions and 8 deletions
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28
module/zfs/arc.c
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@ -282,6 +282,12 @@ typedef struct arc_stats {
kstat_named_t arcstat_l2_size;
kstat_named_t arcstat_l2_hdr_size;
kstat_named_t arcstat_memory_throttle_count;
kstat_named_t arcstat_no_grow;
kstat_named_t arcstat_tempreserve;
kstat_named_t arcstat_loaned_bytes;
kstat_named_t arcstat_meta_used;
kstat_named_t arcstat_meta_limit;
kstat_named_t arcstat_meta_max;
} arc_stats_t;
static arc_stats_t arc_stats = {
@ -337,7 +343,13 @@ static arc_stats_t arc_stats = {
{ "l2_io_error", KSTAT_DATA_UINT64 },
{ "l2_size", KSTAT_DATA_UINT64 },
{ "l2_hdr_size", KSTAT_DATA_UINT64 },
{ "memory_throttle_count", KSTAT_DATA_UINT64 }
{ "memory_throttle_count", KSTAT_DATA_UINT64 },
{ "arc_no_grow", KSTAT_DATA_UINT64 },
{ "arc_tempreserve", KSTAT_DATA_UINT64 },
{ "arc_loaned_bytes", KSTAT_DATA_UINT64 },
{ "arc_meta_used", KSTAT_DATA_UINT64 },
{ "arc_meta_limit", KSTAT_DATA_UINT64 },
{ "arc_meta_max", KSTAT_DATA_UINT64 },
};
#define ARCSTAT(stat) (arc_stats.stat.value.ui64)
@ -399,13 +411,12 @@ static arc_state_t *arc_l2c_only;
#define arc_c ARCSTAT(arcstat_c) /* target size of cache */
#define arc_c_min ARCSTAT(arcstat_c_min) /* min target cache size */
#define arc_c_max ARCSTAT(arcstat_c_max) /* max target cache size */
static int arc_no_grow; /* Don't try to grow cache size */
static uint64_t arc_tempreserve;
static uint64_t arc_loaned_bytes;
static uint64_t arc_meta_used;
static uint64_t arc_meta_limit;
static uint64_t arc_meta_max = 0;
#define arc_no_grow ARCSTAT(arcstat_no_grow)
#define arc_tempreserve ARCSTAT(arcstat_tempreserve)
#define arc_loaned_bytes ARCSTAT(arcstat_loaned_bytes)
#define arc_meta_used ARCSTAT(arcstat_meta_used)
#define arc_meta_limit ARCSTAT(arcstat_meta_limit)
#define arc_meta_max ARCSTAT(arcstat_meta_max)
typedef struct l2arc_buf_hdr l2arc_buf_hdr_t;
@ -3499,6 +3510,7 @@ arc_init(void)
/* limit meta-data to 1/4 of the arc capacity */
arc_meta_limit = arc_c_max / 4;
arc_meta_max = 0;
/* Allow the tunable to override if it is reasonable */
if (zfs_arc_meta_limit > 0 && zfs_arc_meta_limit <= arc_c_max)