mirror_zfs/lib/libzpool
Alexander Motin efdfb14fc8 Remove pool io kstats
This mostly reverts "3537 want pool io kstats" commit of 8 years ago.

From one side this code using pool-wide locks became pretty bad for
performance, creating significant lock contention in I/O pipeline.
From another, there are more efficient ways now to obtain detailed
statistics, while this statistics is illumos-specific and much less
usable on Linux and FreeBSD, reported only via procfs/sysctls.

This commit does not remove KSTAT_TYPE_IO implementation, that may
be removed later together with already unused KSTAT_TYPE_INTR and
KSTAT_TYPE_TIMER.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #12212
2021-06-10 10:50:16 -07:00
..
kernel.c Remove pool io kstats 2021-06-10 10:50:16 -07:00
Makefile.am Bump libzfs.so and libzpool.so versions 2021-04-07 13:25:13 -07:00
taskq.c Improve performance of zio_taskq_member 2020-03-03 10:29:38 -08:00
util.c lib/: set O_CLOEXEC on all fds 2021-04-14 13:23:07 -07:00