On Fri, Nov 21, 2014 at 06:23:43PM +0100, Willy Tarreau wrote:
> There were changes to the acl part but in theory this should not
> impact performance, especially not like this. Are you sure you
> compiled 1.5 the same way as you did for 1.4 ? Please run
> "haproxy -vv" for both versions and output the result. It's possible
> that you used libpcre for 1.4 and not for 1.5 for example. PCRE is
> extremely fast in general and not using it could easily cause what
> you're observing.
yes, both use PCRE, difference is drammatic - 1.4 uses 25-30% CPU with
nbproc 1 and 1.5 maxes out all cores with nbproc 8.
this pinpoints to this exact acl i've included - if i hash it out
everything works as normal (same load as 1.4).
$ haproxy -vv
HA-Proxy version 1.4.25 2014/03/27
Copyright 2000-2014 Willy Tarreau <w...@1wt.eu>
Build options :
TARGET = linux26
CPU = generic
CC = gcc
CFLAGS = -O2 -g -fno-strict-aliasing
OPTIONS = USE_REGPARM=1 USE_PCRE=1
Default settings :
maxconn = 2000, bufsize = 16384, maxrewrite = 8192, maxpollevents = 200
Encrypted password support via crypt(3): yes
Available polling systems :
sepoll : pref=400, test result OK
epoll : pref=300, test result OK
poll : pref=200, test result OK
select : pref=150, test result OK
Total: 4 (4 usable), will use sepoll.
$ haproxy -vv
HA-Proxy version 1.5.8 2014/10/31
Copyright 2000-2014 Willy Tarreau <w...@1wt.eu>
Build options :
TARGET = linux26
CPU = generic
CC = gcc
CFLAGS = -O2 -g -fno-strict-aliasing
OPTIONS = USE_ZLIB=1 USE_REGPARM=1 USE_OPENSSL=1 USE_PCRE=1
Default settings :
maxconn = 2000, bufsize = 16384, maxrewrite = 8192, maxpollevents = 200
Encrypted password support via crypt(3): yes
Built with zlib version : 1.2.3
Compression algorithms supported : identity, deflate, gzip
Built with OpenSSL version : OpenSSL 1.0.1j-fips 15 Oct 2014
Running on OpenSSL version : OpenSSL 1.0.1j-fips 15 Oct 2014
OpenSSL library supports TLS extensions : yes
OpenSSL library supports SNI : yes
OpenSSL library supports prefer-server-ciphers : yes
Built with PCRE version : 6.6 06-Feb-2006
PCRE library supports JIT : no (USE_PCRE_JIT not set)
Available polling systems :
epoll : pref=300, test result OK
poll : pref=200, test result OK
select : pref=150, test result OK
Total: 3 (3 usable), will use epoll.
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