af43029484
For zio taskq's which have multiple instances (e.g. z_rd_int_0, z_rd_int_1, etc), each one has a unique name (the _0, _1, _2 suffix). This makes performance analysis more difficult, because by default, `perf` includes the thread name (which is the same as the taskq name) in the stack trace. This means that we get 8 different stacks, all of which are doing the same thing, but are executed from different taskq's. We should remove the suffix of the taskq name, so that all the read-interrupt threads are named z_rd_int. Note that we already support multiple taskq's with the same name. This happens when there are multiple pools. In this case the taskq has a different tq_instance, which shows up in /proc/spl/taskq-all. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed-by: Giuseppe Di Natale <guss80@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com> Signed-off-by: Matthew Ahrens <mahrens@delphix.com> Closes #7646
ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.
Official Resources
Installation
Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.
Contribute & Develop
We have a separate document with contribution guidelines.
Release
ZFS on Linux is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported kernel versions.