svn commit: r267029 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[Alexander Motin]

On 04.06.2014 08:04, Bryan Drewery wrote:
> On 6/3/2014 4:06 PM, Alexander Motin wrote:
>> Author: mav
>> Date: Tue Jun  3 21:06:03 2014
>> New Revision: 267029
>> URL: http://svnweb.freebsd.org/changeset/base/267029
>>
>> Log:
>>    Replace gethrtime() with cpu_ticks(), as source of random for the taskqueue
>>    selection.  gethrtime() in our port updated with HZ rate, so unusable for
>>    this specific purpose, completely draining benefit of multiple taskqueues.
>>
>>    MFC after:	2 weeks
>>
>> Modified:
>>    head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
>>
>> Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
>> ==============================================================================
>> --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c	Tue Jun  3 21:02:19 2014	(r267028)
>> +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c	Tue Jun  3 21:06:03 2014	(r267029)
>> @@ -953,7 +953,7 @@ spa_taskq_dispatch_ent(spa_t *spa, zio_t
>>   	if (tqs->stqs_count == 1) {
>>   		tq = tqs->stqs_taskq[0];
>>   	} else {
>> -		tq = tqs->stqs_taskq[gethrtime() % tqs->stqs_count];
>> +		tq = tqs->stqs_taskq[cpu_ticks() % tqs->stqs_count];
>>   	}
>>
>>   	taskq_dispatch_ent(tq, func, arg, flags, ent);
>>
>
> FYI r267038.

Thanks. I am sorry.

-- 
Alexander Motin