Re: Does Solaris qsort suck
On Sun, 7 Apr 2002, Dale Ghent wrote: On Sat, 6 Apr 2002, Yusuf Goolamabbas wrote: | Well, That seems to be the view if one reads the following threads at | the postgres mailing list and Sun's developer connection | | http://archives.postgresql.org/pgsql-hackers/2002-04/msg00103.php | http://forum.sun.com/thread.jsp?forum=4thread=7231 | | Don't know if those cases would be seen by Solaris users of Apache | 2.0.x, but it might be useful to snarf FreeBSD's qsort.c and link Apache | to it if a Solaris platform is detected Solaris 8 included a huge increase in qsort performance. What version are you using? I see this bug on SunOS X 5.8 Generic_108529-07 i86pc i386 i86pc But this bug does not affect Apache. Igor Sysoev
Re: Does Solaris qsort suck
Dale Ghent wrote: On Sat, 6 Apr 2002, Yusuf Goolamabbas wrote: | Well, That seems to be the view if one reads the following threads at | the postgres mailing list and Sun's developer connection | | http://archives.postgresql.org/pgsql-hackers/2002-04/msg00103.php | http://forum.sun.com/thread.jsp?forum=4thread=7231 | | Don't know if those cases would be seen by Solaris users of Apache | 2.0.x, but it might be useful to snarf FreeBSD's qsort.c and link Apache | to it if a Solaris platform is detected Solaris 8 included a huge increase in qsort performance. What version are you using? It's also worth noting that Apache 2.0 uses qsort a lot less than 1.3 did. In 1.x, the table code used qsort when merging tables, so the httpd was guaranteed to do at least one qsort call per request (for merging the request headers). In 2.0, the table merge implementation uses a different algorithm that doesn't depend on the qsort. There are a couple of special cases where qsort still is used in request processing in 2.0: mod_negotiation and mod_autoindex, for example. I believe these two modules won't be vulnerable to the performance problem because they'll always be sorting an array containing no duplicate entries. --Brian
Re: Does Solaris qsort suck
On Sat, 6 Apr 2002, Yusuf Goolamabbas wrote: Well, That seems to be the view if one reads the following threads at the postgres mailing list and Sun's developer connection http://archives.postgresql.org/pgsql-hackers/2002-04/msg00103.php http://forum.sun.com/thread.jsp?forum=4thread=7231 Don't know if those cases would be seen by Solaris users of Apache 2.0.x, but it might be useful to snarf FreeBSD's qsort.c and link Apache to it if a Solaris platform is detected I think Apache does not sort more then ten items so this bug does not affect Apache. Igor Sysoev
