diff options
Diffstat (limited to 'man/man5')
| -rw-r--r-- | man/man5/zfs-module-parameters.5 | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5 index 3e62a4436..b4ad3700f 100644 --- a/man/man5/zfs-module-parameters.5 +++ b/man/man5/zfs-module-parameters.5 @@ -883,14 +883,14 @@ Default value: \fB67,108,864\fR. Select a fletcher 4 implementation. .sp Supported selectors are: \fBfastest\fR, \fBscalar\fR, \fBsse2\fR, \fBssse3\fR, -and \fBavx2\fR. All of the selectors except \fBfastest\fR and \fBscalar\fR -require instruction set extensions to be available and will only appear if ZFS -detects that they are present at runtime. If multiple implementations of -fletcher 4 are available, the \fBfastest\fR will be chosen using a micro -benchmark. Selecting \fBscalar\fR results in the original CPU based calculation -being used. Selecting any option other than \fBfastest\fR and \fBscalar\fR -results in vector instructions from the respective CPU instruction set being -used. +\fBavx2\fR, and \fBavx512f\fR. +All of the selectors except \fBfastest\fR and \fBscalar\fR require instruction +set extensions to be available and will only appear if ZFS detects that they are +present at runtime. If multiple implementations of fletcher 4 are available, +the \fBfastest\fR will be chosen using a micro benchmark. Selecting \fBscalar\fR +results in the original, CPU based calculation, being used. Selecting any option +other than \fBfastest\fR and \fBscalar\fR results in vector instructions from +the respective CPU instruction set being used. .sp Default value: \fBfastest\fR. .RE |