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Frank Ch. Eigler 6c8b68b024 PR27701: debuginfod client: encourage reused debuginfod_client objects
Client objects now carry long-lived curl handles for outgoing
connections.  This makes it more efficient for multiple sequential
queries, because the TCP connections and/or TLS state info are kept
around awhile, avoiding O(100ms) setup latencies.  debuginfod is
adjusted to take advantage of this for federation.  Other clients
should gradually do this too, perhaps including elfutils itself (in
the libdwfl->debuginfod_client hooks).

A large gdb session with 117 debuginfo downloads was observed to run
twice as fast (45s vs. 1m30s wall-clock time), just in nuking this
extra setup latency.  This was tested via a debuginfod intermediary:
it should be even faster once gdb reuses its own debuginfod_client.

Signed-off-by: Frank Ch. Eigler <fche@redhat.com>
2021-04-30 21:26:27 -04:00

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2021-04-23 Frank Ch. Eigler <fche@redhat.com>
PR27701
* debuginfod_find_debuginfo.3: Specify sequential reuse policy of
debuginfod_client objects.
2021-02-04 Frank Ch. Eigler <fche@redhat.com>
* debuginfod.8: Mention new --fdcache-mintmp option.
2020-12-11 Dmitry V. Levin <ldv@altlinux.org>
* debuginfod.8: Fix spelling typos.
* debuginfod_find_debuginfo.3: Likewise.
* elfutils.sgml: Likewise.
* readelf.1: Likewise.
2020-12-06 Dmitry V. Levin <ldv@altlinux.org>
* debuginfod_find_debuginfo.3: Document DEBUGINFOD_SONAME macro.
2020-11-11 Mark Wielaard <mark@klomp.org>
* debuginfod_find_debuginfo.3: Document debuginfod_set_verbose_fd
and DEBUGINFOD_VERBOSE.
* debuginfod_set_verbose_fd.3: New redirect to
debuginfod_find_debuginfo.3
2020-10-29 Frank Ch. Eigler <fche@redhat.com>
PR26775
* debuginfod.8: Document that SIGUSR1 interrupts the groom
cycle, and SIGUSR2 interrupts rescan.
2020-10-25 Mark Wielaard <mark@klomp.org>
* debuginfod_find_debuginfo.3 (ECONNREFUSED): Document that this
is also returned for a bad HTTPS server certificate.
2020-10-07 Frank Ch. Eigler <fche@redhat.com>
* debuginfod-find.1: Add missing .br for SYNOPSIS section.
2020-06-19 Mark Wielaard <mark@klomp.org>
* Makefile.am: Guard all client manpages with LIBDEBUGINFOD.
2020-03-29 Mark Wielaard <mark@klomp.org>
* debuginfod_find_debuginfo.3 (HTTP HEADER): Document the expected
header format and purpose.
2020-03-28 Frank Ch. Eigler <fche@redhat.com>
* debuginfod.8: Document valid --port=NUM range, excludes 0.
2020-03-27 Frank Ch. Eigler <fche@redhat.com>
* debuginfod-find.1: Document /path/-based buildid passing.
2020-03-24 Frank Ch. Eigler <fche@redhat.com>
* debuginfod_add_http_header.3: New function, documented ...
* debuginfod_find_debuginfo.3: ... here.
* Makefile.am (notrans_dist_*_man3): Add it.
2020-03-26 Frank Ch. Eigler <fche@redhat.com>
* debuginfod.8 (-R): Note zstd compression complications
and workaround.
2020-03-24 Frank Ch. Eigler <fche@redhat.com>
* debuginfod-find.1, debuginfod_find_debuginfo.3: Document
source path canonicalization.
2020-03-22 Frank Ch. Eigler <fche@redhat.com>
* debuginfod_get_url.3: New function, documented ...
* debuginfod_find_debuginfo.3: ... here.
* Makefile.am (notrans_dist_*_man3): Add it.
2020-03-22 Frank Ch. Eigler <fche@redhat.com>
* debuginfod_get_user.3, _set_user.3: New functions, documented ...
* debuginfod_find_debuginfo.3: ... here.
* Makefile.am (notrans_dist_*_man3): List all debuginfod .3 functions.
2020-02-25 Frank Ch. Eigler <fche@redhat.com>
* debuginfod.8: Note that -R works just like -Z.rpm .
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.
2020-01-10 Mark Wielaard <mark@klomp.org>
* debuginfod_find_debuginfo.3 (DEBUGINFOD_PROGRESS): Mention progress
output goes to stderr.
2020-01-11 Frank Ch. Eigler <fche@redhat.com
* debuginfod.8: Document --fdcache-fds and --fdcache-mbs opts.
2020-01-11 Frank Ch. Eigler <fche@redhat.com>
* debuginfod.8: Rework sections dealing with traversal/scanning,
explaining new threading model.
2020-01-02 Mark Wielaard <mark@klomp.org>
* debuginfod.8 (DEBUGINFOD_TIMEOUT): Document as seconds to
provide 100K, default 90.
* debuginfod-find.1 (DEBUGINFOD_TIMEOUT): Likewise.
* debuginfod_find_debuginfo.3 (DEBUGINFOD_TIMEOUT): Likewise.
2019-12-22 Frank Ch. Eigler <fche@redhat.com
* debuginfod.8: Add -U (DEB) flag, generalize RPM to "archive".
2019-12-04 Frank Ch. Eigler <fche@redhat.com>
* debuginfod-find.1: Bump default timeout to 30.
* debuginfod_find_debuginfo.3: Ditto.
Document $DEBUGINFOD_PROGRESS.
2019-11-26 Frank Ch. Eigler <fche@redhat.com>
Aaron Merey <amerey@redhat.com>
* debuginfod.8, find-debuginfo.1, debuginfod_*.3: New files.
2019-09-02 Mark Wielaard <mark@klomp.org>
* readelf.1 (symbols): Add optional section name.
(dyn-sym): Document new option.
2019-08-28 Mark Wielaard <mark@klomp.org>
* COPYING: Rename to...
* COPYING-GFDL: ... this.
2019-08-23 Ben Woodard <woodard@redhat.com>
* Updated the eu-readelf man page to make it match the options
that eu-readelf actually supports.
2019-08-22 Ben Woodard <woodard@redhat.com>S
* Move the .1 man pages to the correct place.
2019-08-21 Ben Woodard <woodard@redhat.com>
* Updated Changelog
* Added README
2019-08-20 Ben Woodard <woodard@redhat.com>
* Added eu-elfclassify.1 man page based upon --help
* Forked binutils readelf page to make eu-readelf.1 man page
* Modified eu-readelf.1 to add -n:: option.
* Disabled sgml file building per mjw.
* Added man pages to Makefile.am
2019-06-20 Ben Woodard <woodard@redhat.com>
* Added the beginnings of some man pages
2019-08-21 Ben Woodard <woodard@redhat.com>
* Updated Changelog
* Added README
2019-08-20 Ben Woodard <woodard@redhat.com>
* Added eu-elfclassify.1 man page based upon --help
* Forked binutils readelf page to make eu-readelf.1 man page
* Modified eu-readelf.1 to add -n:: option.
* Disabled sgml file building per mjw.
* Added man pages to Makefile.am
2019-06-20 Ben Woodard <woodard@redhat.com>
* Added the beginnings of some man pages
2005-04-29 Ulrich Drepper <drepper@redhat.com>
* elfutils.sgml: Some typo fixes and a few extensions.
Patch by Eric Christopher <echristo@redhat.com>.
2005-02-22 Ulrich Drepper <drepper@redhat.com>
* Makefile.am: Prefer pdf.
2003-08-11 Ulrich Drepper <drepper@redhat.com>
* Moved to CVS archive.