diff options
author | Atsushi Kumagai <ats-kumagai@wm.jp.nec.com> | 2015-05-11 14:26:39 +0900 |
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committer | Atsushi Kumagai <ats-kumagai@wm.jp.nec.com> | 2015-05-28 10:38:42 +0900 |
commit | a117ae9feea408422dacbb59b72a59f39ee3cb77 (patch) | |
tree | 86bba39f38e5d0c70e3d746463b6c4d644e3de89 /makedumpfile.8 | |
parent | edd2bf286d91d9b856040ea404ea0d8df35662fe (diff) |
[PATCH 13/13] Remove --non-cyclic option.
--non-cyclic option is no longer useful, should be removed.
Additionally, since cyclic mode and non-cyclic mode are merged
into the same code, info->flag_cyclic means whether multi-cycle
processing is necessary or not, the related descriptions
should be fixed.
Signed-off-by: Atsushi Kumagai <ats-kumagai@wm.jp.nec.com>
Diffstat (limited to 'makedumpfile.8')
-rw-r--r-- | makedumpfile.8 | 27 |
1 files changed, 9 insertions, 18 deletions
diff --git a/makedumpfile.8 b/makedumpfile.8 index b6055d8..2d38cd0 100644 --- a/makedumpfile.8 +++ b/makedumpfile.8 @@ -387,8 +387,9 @@ The default value is 4. .TP \fB\-\-cyclic\-buffer\fR \fIbuffer_size\fR -Specify the buffer size in kilo bytes for analysis in the cyclic mode. -In the cyclic mode, the number of cycles is represented as: +Specify the buffer size in kilo bytes for bitmap data. +Filtering processing will be divided into multi cycles to fix the memory consumption, +the number of cycles is represented as: num_of_cycles = system_memory / (\fIbuffer_size\fR * 1024 * bit_per_bytes * page_size ) @@ -403,7 +404,7 @@ size, so ordinary users don't need to specify this option. .TP \fB\-\-splitblock\-size\fR \fIsplitblock_size\fR -Specify the splitblock size in kilo bytes for analysis in the cyclic mode with --split. +Specify the splitblock size in kilo bytes for analysis with --split. If --splitblock N is specified, difference of each splitted dumpfile size is at most N kilo bytes. .br @@ -412,15 +413,7 @@ kilo bytes. # makedumpfile \-\-splitblock\-size 1024 \-d 31 \-x vmlinux \-\-split /proc/vmcore dumpfile1 dumpfile2 .TP -\fB\-\-non\-cyclic\fR -Running in the non-cyclic mode, this mode uses the old filtering logic same as v1.4.4 or before. -If you feel the cyclic mode is too slow, please try this mode. -.br -.B Example: -.br -# makedumpfile \-\-non\-cyclic \-d 31 \-x vmlinux /proc/vmcore dumpfile -.TP \fB\-\-work\-dir\fR Specify the working directory for the temporary bitmap file. If this option isn't specified, the bitmap will be saved on memory. @@ -618,13 +611,11 @@ Show the version of makedumpfile. .TP 8 .B TMPDIR -This environment variable is for a temporary memory bitmap file only in the non-cyclic mode. -If your machine has a lots of memory and you use tmpfs on /tmp, makedumpfile -can fail for a little memory in the 2nd kernel because makedumpfile makes a -very large temporary memory bitmap file in this case. To avoid this failure, -you can set a TMPDIR environment variable. If you do not set a TMPDIR -environment variable, makedumpfile uses /tmp directory for a temporary -bitmap file as a default. +This environment variable is used in 1st kernel environment for a temporary memory bitmap file. +If your machine has a lots of memory and you use small tmpfs on /tmp, makedumpfile +can fail for a little memory because makedumpfile makes a very large temporary +memory bitmap file in this case. To avoid this failure, you should specify +--work-dir option to use file system on storage for the bitmap file. .SH DIAGNOSTICS makedumpfile exits with the following value. |