Testing Report:
Server: HP DL785G5 , AMD Opteron 8356 * 8 ( 32 cores ) , 16G RAM
DB: PostgreSQL 8.3.3 ( install from ports , default option )
Test tool: super-smack ( install from ports )
Disk: 146G SAS * 2 ( RAID 1 on HP P400 )
OS kernel: Just change the 4BSD to ULE , and increase the MAXCPU to 32.
PGSQL's config : default postgresql.conf
super-smack's source: default source file & data
command: repeat 10 super-smack -d pg select-key.smack [# of client] 1
And I calculate the average of the 10 results for each execution.
# of client | query per sec.
01 | 5829
02 | 10663
03 | 14399
04 | 16713
05 | 19662
06 | 22434
07 | 25095
08 | 27464
09 | 29783
10 | 31697
11 | 33514
12 | 35298
13 | 36600
14 | 37721
15 | 38061
16 | 39065
17 | 40350
18 | 40525
19 | 41174
20 | 41721
21 | 41354
22 | 39321
23 | 37905
24 | 31794
25 | 29731
26 | 25782
27 | 26069
28 | 23780
29 | 19475
30 | 17867
31 | 17794
32 | 26065
33 | 35252
34 | 36010
35 | 34396
36 | 33878
2008/7/1, Kris Kennaway <[EMAIL PROTECTED]>:
> ProAce wrote:
> > Server: HP DL785G5 with 8 CPU ( 32 cores ) , 16G RAM
> > OS: FreeBSD 7.0-amd64
> > Kernel 1: MAXCPU = 16 ( default )
> > Kernel 2: MAXCPU = 32
> >
> > DL785G5 run with kernel 1 and kernel 2 both successfully, and the
> > FreeBSD can detect the 16 CPUs and 32 CPUs normally ( using top -S
> > command).
> >
> > If I use kernel 2 for postgresql 8.3, is it reliable and stable?
> >
>
> 32 should be OK, but we haven't had access to such a machine yet (we briefly
> had access to a 16-core system but it melted) so we have not yet tuned for
> performance on it. FreeBSD 8.0 will run better if you are willing to use a
> development version of FreeBSD.
>
> Kris
>
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