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Speed up zvol import and export speed

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Speed up import and export speed by:

* Add system delay taskq
* Parallel prefetch zvol dnodes during zvol_create_minors
* Parallel zvol_free during zvol_remove_minors
* Reduce list linear search using ida and hash

Reviewed-by: Boris Protopopov <boris.protopopov@actifio.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Closes #5433
This commit is contained in:
Brian Behlendorf
2016-12-08 14:05:02 -07:00
committed by GitHub
parent 27f2b90d3e 899662e344
commit f95e647891
8 changed files with 205 additions and 90 deletions
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include/sys/zfs_context.h
+1
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@@ -498,6 +498,7 @@ typedef struct taskq {
#define TASKQID_INVALID ((taskqid_t)0)
extern taskq_t *system_taskq;
extern taskq_t *system_delay_taskq;
extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t);
#define taskq_create_proc(a, b, c, d, e, p, f) \