d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
60d1053c22
freebsd-skq/cmd
History
Andriy Gapon 60d1053c22 7545 zdb should disable reference tracking 
illumos/illumos-gate@4dd77f9e38
4dd77f9e38

https://www.illumos.org/issues/7545
  When evicting from the ARC, we manipulate some refcount_t's, e.g. arcs_size.
  When using zdb to examine a large amount of data (e.g. zdb -bb on a large pool
  with small blocks), the ARC may have a large number of entries. If reference
  tracking is enabled, there will be ~1 reference for each block in the ARC. When
  evicting, we decrement the refcount and have to search all the references to
  find the one that we are removing, which is very slow.
  Since zdb is typically used to find problems with the on-disk format, and not
  with the code it is running, we should disable reference tracking in zdb.

Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Steve Gonczi <steve.gonczi@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Matthew Ahrens <mahrens@delphix.com>
2017-04-14 16:55:15 +00:00
..
dtrace 7297 clear() on llquantize aggregation causes dtrace to exit 2016-08-26 20:51:09 +00:00
lockstat Import the lockstat(1) sources from OpenSolaris as of 20080410. 2009-06-18 17:25:38 +00:00
mdb/tools/common Vendor import of the full userland contrib part of DTrace support from 2008-04-26 00:54:52 +00:00
plockstat Import plockstat from OpenSolaris r12768. 2010-07-19 14:57:01 +00:00
pyzfs Update vendor/opensolaris to last OpenSolaris state (13149:b23a4dab3d50) 2012-07-18 07:48:04 +00:00
sgs Update vendor/opensolaris to last OpenSolaris state (13149:b23a4dab3d50) 2012-07-18 07:48:04 +00:00
stat/common Update vendor/illumos/dist and vendor-sys/illumos/dist 2013-02-11 08:07:56 +00:00
zdb 7545 zdb should disable reference tracking 2017-04-14 16:55:15 +00:00
zfs 6314 buffer overflow in dsl_dataset_name 2016-07-12 12:01:54 +00:00
zhack 6314 buffer overflow in dsl_dataset_name 2016-07-12 12:01:54 +00:00
zinject 6531 Provide mechanism to artificially limit disk performance 2016-03-08 16:11:59 +00:00
zlook Update vendor/opensolaris to last OpenSolaris state (13149:b23a4dab3d50) 2012-07-18 07:48:04 +00:00
zpool 6872 zfs libraries should not allow uninitialized variables 2016-07-12 11:59:25 +00:00
zstreamdump 5027 zfs large block support (add copyright) 2016-03-08 17:48:26 +00:00
ztest 7280 Allow changing global libzpool variables in zdb and ztest through command line 2017-04-14 16:53:34 +00:00