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| author | Frank Ch. Eigler <fche@redhat.com> | 2020-01-25 18:43:07 -0500 |
|---|---|---|
| committer | Frank Ch. Eigler <fche@redhat.com> | 2020-02-25 12:05:28 -0500 |
| commit | 577170fc84e1a347076bc6150a7b152da0a882ac (patch) | |
| tree | c82a7c0bd991cac61e9d53c6921d9ac0e448784a /doc | |
| parent | 8f430df5eee70da920ca1e0b00aae73eb2a38b18 (diff) | |
| download | platform_external_elfutils-577170fc84e1a347076bc6150a7b152da0a882ac.tar.gz platform_external_elfutils-577170fc84e1a347076bc6150a7b152da0a882ac.tar.bz2 platform_external_elfutils-577170fc84e1a347076bc6150a7b152da0a882ac.zip | |
PR25375: fdcache prefetching to reduce repeated archive decompression
Introduce new option --fdcache-prefetch to accelerate repeated
queries from the same debuginfo archive.
Signed-off-by: Frank Ch. Eigler <fche@redhat.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/ChangeLog | 4 | ||||
| -rw-r--r-- | doc/debuginfod.8 | 17 |
2 files changed, 14 insertions, 7 deletions
diff --git a/doc/ChangeLog b/doc/ChangeLog index 36094d00..3e57491c 100644 --- a/doc/ChangeLog +++ b/doc/ChangeLog @@ -1,3 +1,7 @@ +2020-02-25 Frank Ch. Eigler <fche@redhat.com> + + * debuginfod.8: Document new --fdcache-prefetch option. + 2020-02-05 Frank Ch. Eigler <fche@redhat.com> * debuginfod.8: Document new -Z flag and tweak other bits. diff --git a/doc/debuginfod.8 b/doc/debuginfod.8 index ca844aed..ed9724d6 100644 --- a/doc/debuginfod.8 +++ b/doc/debuginfod.8 @@ -193,14 +193,17 @@ loops in the symbolic directory tree might lead to \fIinfinite traversal\fP. .TP -.B "\-\-fdcache-fds=NUM" "\-\-fdcache-mbs=MB" +.B "\-\-fdcache\-fds=NUM" "\-\-fdcache\-mbs=MB" "\-\-fdcache\-prefetch=NUM2" Configure limits on a cache that keeps recently extracted files from -archives. Up to NUM files and up to a total of MB megabytes will be -kept extracted, in order to avoid having to decompress their archives -again. The default NUM and MB values depend on the concurrency of the -system, and on the available disk space on the $TMPDIR or \fB/tmp\fP -filesystem. This is because that is where the most recently used -extracted files are kept. Grooming cleans this cache. +archives. Up to NUM requested files and up to a total of MB megabytes +will be kept extracted, in order to avoid having to decompress their +archives over and over again. In addition, up to NUM2 other files +from an archive may be prefetched into the cache before they are even +requested. The default NUM, NUM2, and MB values depend on the +concurrency of the system, and on the available disk space on the +$TMPDIR or \fB/tmp\fP filesystem. This is because that is where the +most recently used extracted files are kept. Grooming cleans this +cache. .TP .B "\-v" |