Attachment 92810 Details for Bug 130548 – file.diff

[patch] file.diff

file.diff (text/plain), 4.29 KB, created by Hywel Mallett on 2009-01-14 14:40:01 UTC

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Creator: Hywel Mallett

Created: 2009-01-14 14:40:01 UTC

Size: 4.29 KB

patch

obsolete

>--- gjournal.8	2009-01-05 10:52:33.000000000 +0000
>+++ gjournal.8.new	2009-01-13 12:36:32.000000000 +0000
>@@ -223,6 +223,100 @@
>     mount -o async /dev/da0s1d.journal /mnt || \e
>     mount /dev/da0s1d /mnt
> .Ed
>+.Sh SYSCTLS
>+gjournal adds the sysctl level kern.geom.journal
>+The string and integer information available
>+is detailed below.
>+The changeable column shows whether a process with appropriate
>+privilege may change the value.
>+.Bl -column "accept_immediatelyXXXXXX" integerXXX -offset indent
>+.It Sy "sysctl name	Type	Changeable"
>+.It "debug	integer	yes"
>+.It "switch_time	integer	yes"
>+.It "force_switch	integer	yes"
>+.It "parallel_flushes	integer	yes"
>+.It "accept_immediately	integer	yes"
>+.It "parallel_copies	integer	yes"
>+.It "record_entries	integer	yes"
>+.It "optimize	integer	yes"
>+.E1
>+.Pp
>+.B1 -tag -width 6n
>+.It Li debug
>+Setting a non-zero value enables debugging at various levels. Debug level 1 will record actions at a journal level, relating to journal switches, metadata updates etc. Debug level 2 will record actions at a higher level, relating to the numbers of entries in journals, access requests etc. Debug level 3 will record verbose detail, including insetion of I/Os to the journal.
>+.It Li switch_time
>+The maximum number of seconds a journal is allowed to remain open before switching to a new journal.
>+.It Li force_switch
>+Force a journal switch when the journal uses more than N% of the free journal space.
>+.It Li parallel_flushes
>+The number of flush I/O requests to be sent in parallel when flushing the journal to the data provider.
>+.It Li accept_immediately
>+The maximum number of I/O requests accepted at the same time.
>+.It Li parallel_copies
>+The number of copy I/O requests to send in parallel.
>+.It Li record_entries
>+The maximum number of record entries to allow in a single journal.
>+.It Li optimize
>+Controls whether entries in a journal will be optimized, by combining overlapping I/Os into a single I/O, and reordering the entries in a journal. This can be disabled by setting the sysctl to 0.
>+.E1
>+.Ss cache
>+The string and integer information available for the cache level
>+is detailed below.
>+The changeable column shows whether a process with appropriate
>+privilege may change the value.
>+.Bl -column "alloc_failuresXXXXXX" integerXXX -offset indent
>+.It Sy "sysctl name	Type	Changeable"
>+.It "used	integer	no"
>+.It "limit	integer	yes"
>+.It "divisor	integer	no"
>+.It "switch	integer	yes"
>+.It "misses	integer	yes"
>+.It "alloc_failures	integer	yes"
>+.E1
>+.Pp
>+.B1 -tag -width 6n
>+.It Li used
>+The number of bytes currently allocated to the cache.
>+.It Li limit
>+The maximum number of bytes to be allocated to the cache.
>+.It Li divisor
>+Sets the cache size to be used as a proportion of kmem_size. A value of 2 (the default) will cause the cache size to be set to 1/2 of the kmem_size.
>+.It Li switch
>+Force a journal switch when this percentage of cache has been used.
>+.It Li misses
>+The number of cache misses, when data has been read, but was not found in the cache.
>+.It Li alloc_failures
>+The number of times memory failed to be allocated to the cache because the cache limit was hit.
>+.E1
>+.Ss statistics
>+The string and integer information available for the statistics level
>+is detailed below.
>+The changeable column shows whether a process with appropriate
>+privilege may change the value.
>+.Bl -column "skipped_bytesXXXXXX" integerXXX -offset indent
>+.It Sy "sysctl name     Type    Changeable"
>+.It "skipped_bytes       integer yes"
>+.It "combined_ios      integer yes"
>+.It "switches    integer yes"
>+.It "wait_for_copy     integer yes"
>+.It "journal_full    integer yes"
>+.It "low_mem     integer yes"
>+.E1
>+.Pp
>+.B1 -tag -width 6n
>+.It Li skipped_bytes
>+The number of bytes skipped.
>+.It Li combined_ios
>+The number of I/Os which were combined by journal optimization.
>+.It Li switches
>+The number of journal switches.
>+.It Li wait_for_copy
>+The number of times the journal switch process had to wait for the previous journal copy to complete.
>+.It Li journal_full
>+The number of times the journal was almost full, forcing a journal switch.
>+.It Li low_mem
>+The number of times the low_mem hook was called.
>+.E1
> .Sh SEE ALSO
> .Xr geom 4 ,
> .Xr geom 8 ,
>@@ -237,7 +331,3 @@
> .Fx 7.0 .
> .Sh AUTHORS
> .An Pawel Jakub Dawidek Aq pjd@FreeBSD.org
>-.Sh BUGS
>-Documentation for sysctls
>-.Va kern.geom.journal.*
>-is missing.

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