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authorBrian Behlendorf <[email protected]>2010-10-28 10:42:38 -0700
committerBrian Behlendorf <[email protected]>2010-11-08 14:03:35 -0800
commit7e55f4e00cefd7bf5ff7753759c42c5af19ba710 (patch)
treedbd4a56f8230bb7e2806a194308f79dffb377d81 /module
parent451041db531dfec52c9e70fbd5d4179e30d61e2f (diff)
Increate zio write interrupt thread count.
Increasing the default zio_wr_int thread count from 8 to 16 improves write performence by 13% on large systems. More testing need to be done but I suspect the ideal tuning here is ZTI_BATCH() with a minimum of 8 threads.
Diffstat (limited to 'module')
-rw-r--r--module/zfs/spa.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/module/zfs/spa.c b/module/zfs/spa.c
index 93650386e..3599e61c9 100644
--- a/module/zfs/spa.c
+++ b/module/zfs/spa.c
@@ -106,7 +106,7 @@ const zio_taskq_info_t zio_taskqs[ZIO_TYPES][ZIO_TASKQ_TYPES] = {
/* ISSUE ISSUE_HIGH INTR INTR_HIGH */
{ ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL },
{ ZTI_FIX(8), ZTI_NULL, ZTI_BATCH, ZTI_NULL },
- { ZTI_BATCH, ZTI_FIX(5), ZTI_FIX(8), ZTI_FIX(5) },
+ { ZTI_BATCH, ZTI_FIX(5), ZTI_FIX(16), ZTI_FIX(5) },
{ ZTI_FIX(100), ZTI_NULL, ZTI_ONE, ZTI_NULL },
{ ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL },
{ ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL },