Bug#758068: libapr1: mmap allocator severely limites apache scalability

2015-01-02 Thread Stefan Fritsch
reassign 758068 libapache2-mod-security2 thanks On Sunday 07 September 2014 09:11:54, Stefan Fritsch wrote: > there is now a bug report at > https://github.com/SpiderLabs/ModSecurity/issues/768 > > Can you please try if the patch for mod_security attached to this > mail fixes the issue? Re-assi

Bug#758068: libapr1: mmap allocator severely limites apache scalability

2014-09-07 Thread Stefan Fritsch
Hi, On Friday 15 August 2014 21:33:07, Stefan Fritsch wrote: > It seems mod_security does its own things with apr allocators, which > causes MaxMemFree not to have any effect for mod_security's > allocations. I have asked them why they do that. Let's see what > they respond. there is now a bug re

Bug#758068: libapr1: mmap allocator severely limites apache scalability

2014-08-15 Thread Stefan Fritsch
On Thursday 14 August 2014 17:02:04, Nelson Elhage wrote: > On Thu, Aug 14, 2014 at 12:22 AM, Stefan Fritsch wrote: > > Can you please try if increasing MaxMemFree to a larger value > > fixes your problem, too? 2048 (KB) is the default. > > Unfortunately setting that higher (we tried 100MB) does

Bug#758068: libapr1: mmap allocator severely limites apache scalability

2014-08-14 Thread Nelson Elhage
On Thu, Aug 14, 2014 at 12:22 AM, Stefan Fritsch wrote: > Can you please try if increasing MaxMemFree to a larger value fixes your > problem, too? 2048 (KB) is the default. > Unfortunately setting that higher (we tried 100MB) doesn't seem to noticeably improve the situation in our environment.

Bug#758068: libapr1: mmap allocator severely limites apache scalability

2014-08-14 Thread Stefan Fritsch
Hi, On Wed, 13 Aug 2014, Nelson Elhage wrote: > Please disable the experimental --enable-mmap-allocator option in the > Debian libapr build. Can you please try if increasing MaxMemFree to a larger value fixes your problem, too? 2048 (KB) is the default. I don't want to disable --enable-mmap-allo

Bug#758068: libapr1: mmap allocator severely limites apache scalability

2014-08-13 Thread Nelson Elhage
Package: libapr1 Version: 1.5.0-1 Severity: normal Dear Maintainer, Please disable the experimental --enable-mmap-allocator option in the Debian libapr build. The mmap allocator forces APR to perform a huge number of tiny (1-2 page) mmap() calls. On Linux, the process address space is protected