ru.unix.bsd

 
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 From : Slawa Olhovchenkov                   2:5030/500     04 Dec 2005  02:51:30
 To : All
 Subject : Вести с полей
 -------------------------------------------------------------------------------- 
 

 
 From: Jason Evans <jasone@canonware.com>
 Subject: New libc malloc patch
 
 There is a patch that contains a new libc malloc implementation at:
 
 http://www.canonware.com/~jasone/jemalloc/jemalloc_20051127a.diff
 
 This implementation is very different from the current libc malloc.
 Probably the most important difference is that this one is designed
 with threads and SMP in mind.
 
 The patch has been tested for stability quite a bit already, thanks
 mainly to Kris Kennaway.  However, any help with performance testing
 would be greatly appreciated.  Specifically, I'd like to know how
 well this malloc holds up to threaded workloads on SMP systems.  If
 you have an application that relies on threads, please let me know
 how performance is affected.
 
 Naturally, if you notice horrible performance or ridiculous resident
 memory usage, that's a bad thing and I'd like to hear about it.
 
 Thanks,
 Jason
 
 === Important notes:
 
 * You need to do a full buildworld/installworld in order for the
 patch to work correctly, due to various integration issues with the
 threads libraries and rtld.
 
 * The virtual memory size of processes, as reported in the SIZE field
 by top, will appear astronomical for almost all processes (32+ MB).
 This is expected; it is merely an artifact of using large mmap()ed
 regions rather than sbrk().
 
 * In keeping with the default option settings for CURRENT, the A and
 J flags are enabled by default.  When conducting performance tests,
 specify MALLOC_OPTIONS="aj" .
 ... Hас Reboot, а мы кpепчаем
 --- GoldED+/BSD 1.1.5
  * Origin:  (2:5030/500)
 
 

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