forked from pool/util-linux
Accepting request 1085804 from Base:System
OBS-URL: https://build.opensuse.org/request/show/1085804 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/util-linux?expand=0&rev=270
This commit is contained in:
Dominique Leuenberger
Git OBS Bridge
commit
96c4e4e9fb
83
fix-lib-internal-cache-size.patch
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83
fix-lib-internal-cache-size.patch
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@ -0,0 +1,83 @@
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From 2fa4168c8bc9d5438bc1dfadda293c7c21b6fa59 Mon Sep 17 00:00:00 2001
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From: Michael Trapp <michael.trapp@sap.com>
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Date: Mon, 6 Mar 2023 10:40:20 +0000
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Subject: [PATCH] libuuid: fix lib internal cache size
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The lib internal cache improves throughput in high load
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scenarios but for applications with a low request rate,
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the cache size must be adapted to this situation.
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Therefore the cache size should be changed to the current
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requirements of the application during runtime.
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---
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libuuid/src/gen_uuid.c | 30 ++++++++++++++++++++++--------
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1 file changed, 22 insertions(+), 8 deletions(-)
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Index: util-linux-2.38.1/libuuid/src/gen_uuid.c
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===================================================================
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--- util-linux-2.38.1.orig/libuuid/src/gen_uuid.c
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+++ util-linux-2.38.1/libuuid/src/gen_uuid.c
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@@ -442,25 +442,35 @@ int __uuid_generate_time(uuid_t out, int
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*/
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static int uuid_generate_time_generic(uuid_t out) {
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#ifdef HAVE_TLS
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+ /* thread local cache for uuidd based requests */
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+ const int cs_min = (1<<6);
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+ const int cs_max = (1<<18);
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+ const int cs_factor = 2;
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THREAD_LOCAL int num = 0;
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- THREAD_LOCAL int cache_size = 1;
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+ THREAD_LOCAL int cache_size = cs_min;
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+ THREAD_LOCAL int last_used = 0;
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THREAD_LOCAL struct uuid uu;
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THREAD_LOCAL time_t last_time = 0;
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time_t now;
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- if (num > 0) {
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+ if (num > 0) { /* expire cache */
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now = time(NULL);
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- if (now > last_time+1)
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+ if (now > last_time+1) {
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+ last_used = cache_size - num;
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num = 0;
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+ }
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}
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- if (num <= 0) {
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+ if (num <= 0) { /* fill cache */
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/*
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* num + OP_BULK provides a local cache in each application.
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* Start with a small cache size to cover short running applications
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- * and increment the cache size over the runntime.
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+ * and adjust the cache size over the runntime.
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*/
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- if (cache_size < 1000000)
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- cache_size *= 10;
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+ if ((last_used == cache_size) && (cache_size < cs_max))
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+ cache_size *= cs_factor;
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+ else if ((last_used < (cache_size / cs_factor)) && (cache_size > cs_min))
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+ cache_size /= cs_factor;
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+
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num = cache_size;
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if (get_uuid_via_daemon(UUIDD_OP_BULK_TIME_UUID,
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@@ -470,9 +480,11 @@ static int uuid_generate_time_generic(uu
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num--;
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return 0;
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}
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+ /* request to daemon failed, reset cache */
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num = 0;
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+ cache_size = cs_min;
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}
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- if (num > 0) {
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+ if (num > 0) { /* serve uuid from cache */
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uu.time_low++;
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if (uu.time_low == 0) {
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uu.time_mid++;
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@@ -481,6 +493,8 @@ static int uuid_generate_time_generic(uu
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}
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num--;
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uuid_pack(&uu, out);
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+ if (num == 0)
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+ last_used = cache_size;
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return 0;
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}
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#else
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@ -1,3 +1,21 @@
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-------------------------------------------------------------------
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Tue May 9 19:46:41 UTC 2023 - Antonio Teixeira <antonio.teixeira@suse.com>
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- Suppress error messages for grep command where the input file
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might not exist (boo#1169835)
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-------------------------------------------------------------------
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Tue May 9 16:31:55 UTC 2023 - Daniel Garcia <daniel.garcia@suse.com>
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- Call fdupes without -s to avoid broken symlinks, pointing to
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different subpackage. boo#1209990
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-------------------------------------------------------------------
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Fri Apr 28 09:42:27 UTC 2023 - Daniel Garcia <daniel.garcia@suse.com>
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- Add upstream patch fix-lib-internal-cache-size.patch
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bsc#1210164, gh#util-linux/util-linux@2fa4168c8bc9
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-------------------------------------------------------------------
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Fri Mar 31 13:02:13 UTC 2023 - Michal Koutný <mkoutny@suse.com>
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@ -114,6 +114,8 @@ Patch4: util-linux-bash-completion-su-chsh-l.patch
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Patch5: util-linux-fix-tests-when-at-symbol-in-path.patch
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# https://github.com/util-linux/util-linux/commit/0c0fb46dcef6c63c74094486e499e376fdb33a04.diff
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Patch6: util-linux-honor-noclear-when-reprint-issue.patch
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# Patch-FIX_UPSTREAM: fix-lib-internal-cache-size.patch bsc#1210164 -- gh#util-linux/util-linux@2fa4168c8bc9
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Patch7: fix-lib-internal-cache-size.patch
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BuildRequires: audit-devel
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BuildRequires: bc
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BuildRequires: binutils-devel
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@ -663,7 +665,7 @@ rm -r %{buildroot}{%{_bindir},%{_mandir},%{_datadir},%{_includedir},%{_libdir}/{
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# fdupes for all multibuild flavors
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# Link duplicate manpages or python bindings.
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%fdupes -s %{buildroot}%{_prefix}
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%fdupes %{buildroot}%{_prefix}
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##############
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# Base check #
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@ -752,7 +754,7 @@ done
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# Perform one-time config replace.
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# Applies for: Update from SLE11, online update for SLE15 SP1, Leap15.1.
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# Not needed for /etc/default/runuser. It was first packaged after the change.
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if ! grep -q "^# /etc/default/su is an override" %{_sysconfdir}/default/su ; then
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if ! grep -qs "^# /etc/default/su is an override" %{_sysconfdir}/default/su ; then
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if test -f %{_sysconfdir}/default/su.rpmnew ; then
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if ! test -f %{_sysconfdir}/default/su.rpmorig ; then
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cp -a %{_sysconfdir}/default/su %{_sysconfdir}/default/su.rpmorig
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