c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-22 18:40:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

Refactor txg history kstat

Browse Source 
It was observed that even when the txg history is disabled by
setting `zfs_txg_history=0` the txg_sync thread still fetches
the vdev stats unnecessarily.

This patch refactors the code such that vdev_get_stats() is no
longer called when `zfs_txg_history=0`.  And it further reduces
the  differences between upstream and the ZoL txg_sync_thread()
function.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #5412
This commit is contained in:
Brian Behlendorf
2016-12-02 16:57:49 -07:00
committed by GitHub
parent 6c09d3e5a0
commit baf67d15a5
3 changed files with 65 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/sys/spa.h
+10 -2
View File
@@ -725,6 +725,13 @@ typedef enum txg_state {
TXG_STATE_COMMITTED = 5,
} txg_state_t;
typedef struct txg_stat {
vdev_stat_t vs1;
vdev_stat_t vs2;
uint64_t txg;
uint64_t ndirty;
} txg_stat_t;
extern void spa_stats_init(spa_t *spa);
extern void spa_stats_destroy(spa_t *spa);
extern void spa_read_history_add(spa_t *spa, const zbookmark_phys_t *zb,
@@ -732,8 +739,9 @@ extern void spa_read_history_add(spa_t *spa, const zbookmark_phys_t *zb,
extern void spa_txg_history_add(spa_t *spa, uint64_t txg, hrtime_t birth_time);
extern int spa_txg_history_set(spa_t *spa, uint64_t txg,
txg_state_t completed_state, hrtime_t completed_time);
extern int spa_txg_history_set_io(spa_t *spa, uint64_t txg, uint64_t nread,
uint64_t nwritten, uint64_t reads, uint64_t writes, uint64_t ndirty);
extern txg_stat_t *spa_txg_history_init_io(spa_t *, uint64_t,
struct dsl_pool *);
extern void spa_txg_history_fini_io(spa_t *, txg_stat_t *);
extern void spa_tx_assign_add_nsecs(spa_t *spa, uint64_t nsecs);
/* Pool configuration locks */