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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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lib/libzpool/taskq.c
+5
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@@ -32,6 +32,7 @@
int taskq_now;
taskq_t *system_taskq;
taskq_t *system_delay_taskq;
#define TASKQ_ACTIVE 0x00010000
@@ -353,6 +354,8 @@ system_taskq_init(void)
{
system_taskq = taskq_create("system_taskq", 64, maxclsyspri, 4, 512,
TASKQ_DYNAMIC | TASKQ_PREPOPULATE);
system_delay_taskq = taskq_create("delay_taskq", 4, maxclsyspri, 4,
512, TASKQ_DYNAMIC | TASKQ_PREPOPULATE);
}
void
@@ -360,4 +363,6 @@ system_taskq_fini(void)
{
taskq_destroy(system_taskq);
system_taskq = NULL; /* defensive */
taskq_destroy(system_delay_taskq);
system_delay_taskq = NULL;
}