Alan Somers b64afa41d5 Better control the thread pool size when mounting datasets ... Ever since a10d50f999, ZFS has mounted file systems in parallel when importing a pool. It uses a fixed size of 512 for the thread pool. But since c183d164aa, it has also imported pools in parallel. So the total number of threads at one time is 513 * npools + 1. That can easily exceed the system's limit on the number of threads per process, which will cause one or more pools to be unable to allocate any worker threads, forcing them to fallback to slow serial mounting . To forestall that, manage the threadpool size in /sbin/zpool, not libzfs. Use the same size (512), but divided by the number of pools. This is a backwards-incompatible change to the libzfs abi. Sponsored by: Axcient Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Wilson <gwilson@delphix.com> Signed-off-by: Alan Somers <asomers@FreeBSD.org> Closes #16178		2024-05-14 09:36:21 -07:00
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compatibility.d	ZTS: Test for all known zpool feature sets	2023-11-09 10:58:23 -08:00
os	GCC: Fixes for gcc 14 on Fedora 40	2024-04-29 11:31:50 -07:00
zpool.d	zed: misc vdev_enc_sysfs_path fixes	2023-11-07 09:09:24 -08:00
Makefile.am	Add compatibility symlinks for FreeBSD 12.{3,4} and 13.{0,1,2}	2023-05-26 15:37:15 -07:00
zpool_iter.c	zpool: Add slot power control, print power status	2023-12-21 10:53:16 -08:00
zpool_main.c	Better control the thread pool size when mounting datasets	2024-05-14 09:36:21 -07:00
zpool_util.c	Replace dead opensolaris.org license link	2022-07-11 14:16:13 -07:00
zpool_util.h	zpool: Add slot power control, print power status	2023-12-21 10:53:16 -08:00
zpool_vdev.c	zed: misc vdev_enc_sysfs_path fixes	2023-11-07 09:09:24 -08:00