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Disable zio_dva_throttle_enabled by default

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Until it can be determined definitively that a performance
regression wasn't introduced accidentally by 3dfb57a this
functionality is being disabled by default.  It can be re-
enabled by setting zio_dva_throttle_enabled=1.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #5335 
Issue #5289
This commit is contained in:
Brian Behlendorf 2016-10-26 09:13:43 -07:00 committed by GitHub
parent e4010f2719
commit 76a87a902e
2 changed files with 2 additions and 2 deletions
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2
man/man5/zfs-module-parameters.5
View File

@ -1861,7 +1861,7 @@ Default value: \fB30,000\fR.
Throttle block allocations in the ZIO pipeline. This allows for
dynamic allocation distribution when devices are imbalanced.
.sp
Default value: \fB1\fR.
Default value: \fB0\fR.
.RE
.sp

2
module/zfs/zio.c
View File

@ -56,7 +56,7 @@ const char *zio_type_name[ZIO_TYPES] = {
"z_null", "z_rd", "z_wr", "z_fr", "z_cl", "z_ioctl"
};
int zio_dva_throttle_enabled = B_TRUE;
int zio_dva_throttle_enabled = B_FALSE;
/*
* ==========================================================================