Re: [naviserver-devel] new memory allocator to test

[Vlad S. <vl...@cr...>]

Try to uncomment -DUSE_MALLOC in Makefile, looks like Solaris/OSX do not 
like too many mmap-ed pages

Zoran Vasiljevic wrote:
> On 20.12.2006, at 15:33, Vlad Seryakov wrote:
> 
>> In my test.tcl when hitting nsd 5000 times i get 720 req/sec with  
>> zippy,
>> 640 req/sec with vmalloc and 520 req/sec with ptmalloc. for some  
>> reason
>> nedmalloc crashes when i LD_PRELOAD it on my machine.
>>
>> The nice thing is this:
>>
>> after the test when nsd has 30 running threads:
>>
>> vlad     17932  105 20.8 738768 215756 ?       Ssl  18:46   0:47
>> /usr/local/ns/bin/nsd -i -
>>
> 
> In my test:
> 
> zvpb:~/Desktop/vmalloc zoran$ gdb ./vmalloctest
> (gdb) run
> Starting program: /Users/zoran/Desktop/vmalloc/vmalloctest
> Reading symbols for shared libraries . done
> vmalloc: threads 4, loops 50000, buffer 16384:
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> Reason: KERN_PROTECTION_FAILURE at address: 0x00000003
> [Switching to process 1073 thread 0x20f]
> 0x00002b74 in cacheAlloc (cache=0xb008af78, bucket=0) at vmalloc.c:315
> 315         page->magic = MAGIC;
> (gdb) bt
> #0  0x00002b74 in cacheAlloc (cache=0xb008af78, bucket=0) at  
> vmalloc.c:315
> #1  0x00002e68 in vmalloc (size=9) at vmalloc.c:369
> #2  0x00003478 in MemThread (arg=0x0) at vmalloctest.c:92
> #3  0x9002b508 in _pthread_body ()
> (gdb) print *cache
> $1 = {
>    objs = 0x0,
>    pages = {0x0 <repeats 28 times>},
>    stats = {
>      nallocs = 1,
>      nfrees = 0,
>      npages = 1,
>      npages_g = 0,
>      nobjs = 0
>    }
> }
> (gdb) print page
> $2 = (Page *) 0xffffffff
> 
> Something troubles him. This is on Mac OSX.
> 
> 
> 
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-- 
Vlad Seryakov
571 262-8608 office
vl...@cr...
http://www.crystalballinc.com/vlad/