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* [Bug debuginfod/25375] New: optimization: speculative fdcache'ing of peers in decompressed archive
@ 2020-01-13  2:46 fche at redhat dot com
  2020-01-25 23:44 ` [Bug debuginfod/25375] " fche at redhat dot com
  2020-02-25 17:06 ` fche at redhat dot com
  0 siblings, 2 replies; 3+ messages in thread
From: fche at redhat dot com @ 2020-01-13  2:46 UTC (permalink / raw)
  To: elfutils-devel

https://sourceware.org/bugzilla/show_bug.cgi?id=25375

            Bug ID: 25375
           Summary: optimization: speculative fdcache'ing of peers in
                    decompressed archive
           Product: elfutils
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: debuginfod
          Assignee: unassigned at sourceware dot org
          Reporter: fche at redhat dot com
                CC: elfutils-devel at sourceware dot org
  Target Milestone: ---

Consider a systemtap test run against debuginfod.  There are some test cases
that ask for probes of numerous kernel modules.  Each of these is submitted to
debuginfod - sequentially - and each one can result in a separate rpm2cpio job
to decompress the same kernel-debuginfo rpm.

We should consider adding an option to fdcache with the effect that: if we're
decompressing an archive for a genuine request, anticipate that there may be
near-future requests for other files in the archive, and therefore decompress &
intern them all in fdcache.  This would trade fdcache storage space for
decompression time.

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* [Bug debuginfod/25375] optimization: speculative fdcache'ing of peers in decompressed archive
  2020-01-13  2:46 [Bug debuginfod/25375] New: optimization: speculative fdcache'ing of peers in decompressed archive fche at redhat dot com
@ 2020-01-25 23:44 ` fche at redhat dot com
  2020-02-25 17:06 ` fche at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: fche at redhat dot com @ 2020-01-25 23:44 UTC (permalink / raw)
  To: elfutils-devel

https://sourceware.org/bugzilla/show_bug.cgi?id=25375

--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> ---
prototype is commit b5ba87c835ba

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* [Bug debuginfod/25375] optimization: speculative fdcache'ing of peers in decompressed archive
  2020-01-13  2:46 [Bug debuginfod/25375] New: optimization: speculative fdcache'ing of peers in decompressed archive fche at redhat dot com
  2020-01-25 23:44 ` [Bug debuginfod/25375] " fche at redhat dot com
@ 2020-02-25 17:06 ` fche at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: fche at redhat dot com @ 2020-02-25 17:06 UTC (permalink / raw)
  To: elfutils-devel

https://sourceware.org/bugzilla/show_bug.cgi?id=25375

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Frank Ch. Eigler <fche at redhat dot com> ---
commit 577170fc84e1 includes slight merge tweaks from previous version

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2020-01-13  2:46 [Bug debuginfod/25375] New: optimization: speculative fdcache'ing of peers in decompressed archive fche at redhat dot com
2020-01-25 23:44 ` [Bug debuginfod/25375] " fche at redhat dot com
2020-02-25 17:06 ` fche at redhat dot com

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