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authorChristoph Hellwig2010-05-19 20:27:22 +0200
committerKarel Zak2010-05-28 14:29:07 +0200
commit7ccfa4dd66c59b01b81e30e7789b06cf574d631a (patch)
treea82227a5bd83faf7dfbb331477a032cca85f9d9f /mount/mount.8
parentbuild-sys: replace ../ with $top_srcdir (diff)
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mount: fix information about XFS log buffers in mount.8
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'mount/mount.8')
-rw-r--r--mount/mount.811
1 files changed, 2 insertions, 9 deletions
diff --git a/mount/mount.8 b/mount/mount.8
index 06ea3acd2..093001b84 100644
--- a/mount/mount.8
+++ b/mount/mount.8
@@ -2415,13 +2415,7 @@ was specified.
.BI logbufs= value
Set the number of in-memory log buffers. Valid numbers range
from 2-8 inclusive.
-The default value is 8 buffers for filesystems with a
-blocksize of 64KiB, 4 buffers for filesystems with a blocksize
-of 32KiB, 3 buffers for filesystems with a blocksize of 16KiB
-and 2 buffers for all other configurations. Increasing the
-number of buffers may increase performance on some workloads
-at the cost of the memory used for the additional log buffers
-and their associated control structures.
+The default value is 8 buffers for any recent kernel.
.TP
.BI logbsize= value
Set the size of each in-memory log buffer.
@@ -2429,8 +2423,7 @@ Size may be specified in bytes, or in kilobytes with a "k" suffix.
Valid sizes for version 1 and version 2 logs are 16384 (16k) and
32768 (32k). Valid sizes for version 2 logs also include
65536 (64k), 131072 (128k) and 262144 (256k).
-The default value for machines with more than 32MiB of memory
-is 32768, machines with less memory use 16384 by default.
+The default value for any recent kernel is 32768.
.TP
\fBlogdev=\fP\fIdevice\fP and \fBrtdev=\fP\fIdevice\fP
Use an external log (metadata journal) and/or real-time device.