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07ca433973
During module load time all of the available fetcher4 and raidz
implementations are benchmarked for a fixed amount of time to
determine the fastest available. Manual testing has shown that this
time can be significantly reduced with negligible effect on the final
results.
This commit changes the benchmark time to 1ms which can reduce the
module load time by over a second on x86_64. On an x86_64 system
with sse3, ssse3, and avx2 instructions the benchmark times are:
Fletcher4 603ms -> 15ms
RAIDZ 1,322ms -> 64ms
Reviewed-by: Matthew Macy <mmacy@freebsd.org>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11282
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| cmd | ||
| config | ||
| contrib | ||
| etc | ||
| include | ||
| lib | ||
| man | ||
| module | ||
| rpm | ||
| scripts | ||
| tests | ||
| udev | ||
| .editorconfig | ||
| .gitignore | ||
| .gitmodules | ||
| AUTHORS | ||
| autogen.sh | ||
| CODE_OF_CONDUCT.md | ||
| configure.ac | ||
| copy-builtin | ||
| COPYRIGHT | ||
| cppcheck-suppressions.txt | ||
| LICENSE | ||
| Makefile.am | ||
| META | ||
| NEWS | ||
| NOTICE | ||
| README.md | ||
| TEST | ||
| zfs.release.in | ||
OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
Installation
Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.
Contribute & Develop
We have a separate document with contribution guidelines.
We have a Code of Conduct.
Release
OpenZFS 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 Linux kernel versions. - Supported FreeBSD versions are 12-STABLE and 13-CURRENT.