2 x quad-core system is slower that 2 x dual core on FreeBSD

Alexey Popov lol at chistydom.ru
Wed Nov 21 05:23:21 PST 2007


Hi all.

Sorry, forgot to attach top & vmstat oputput on 8-core 7-stable with
optimized PHP realpath_cache_size.

With best regards,
Alexey Popov

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last pid: 91239;  load averages:  4.64,  4.72,  7.82                                                                                 up 0+19:13:37  14:07:50
53 processes:  7 running, 46 sleeping
CPU states: 78.0% user,  0.0% nice, 21.5% system,  0.0% interrupt,  0.4% idle
Mem: 341M Active, 181M Inact, 225M Wired, 272K Cache, 186M Buf, 3158M Free
Swap: 2048M Total, 2048M Free

  PID USERNAME   THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
91238 www          1   4    0 99644K 48752K sbwait 4   0:03 64.04% httpd
91233 www          1 100    0    98M 46124K select 3   0:03 55.79% httpd
91236 www          1 100    0 92476K 41000K select 3   0:03 54.69% httpd
91234 www          1 100    0 99644K 47212K select 7   0:03 54.02% httpd
91235 www          1 100    0 93500K 42508K CPU1   0   0:03 52.26% httpd
91232 www          1 100    0 92476K 41980K select 4   0:03 45.17% httpd
91231 www          1 100    0 97596K 43656K CPU7   1   0:03 41.22% httpd
91226 www          1 100    0 99644K 49524K select 6   0:05 37.63% httpd
91228 www          1 100    0 98620K 46516K select 5   0:05 37.02% httpd
91237 www          1  98    0 99644K 43588K select 1   0:01 32.83% httpd
91223 www          1 101    0 96572K 47312K select 5   0:07 31.85% httpd
91229 www          1  99    0 99644K 46632K select 4   0:03 30.42% httpd
91135 www          1 101    0    98M 51528K select 7   0:33 29.86% httpd
91227 www          1 100    0    99M 47212K select 2   0:03 28.02% httpd
91225 www          1 100    0    98M 47068K CPU5   5   0:06 27.56% httpd
91180 www          1 100    0   113M 62152K CPU2   3   0:21 26.41% httpd
91224 www          1 100    0    99M 50260K select 5   0:06 24.21% httpd
91214 www          1  99    0 99644K 49576K select 5   0:11 23.49% httpd
91212 www          1 100    0    99M 51548K select 2   0:10 22.89% httpd
91230 www          1  98    0    98M 46200K select 7   0:02 21.31% httpd
91077 www          1  99    0    99M 51940K CPU6   4   0:50 20.41% httpd
91209 www          1  99    0 97596K 46316K CPU3   3   0:10 20.08% httpd
91196 www          1  98    0 99648K 50412K select 7   0:13 18.59% httpd
91239 www          1  96    0 99644K 45728K select 1   0:01 11.57% httpd
18052 llp          1  96    0 32928K  4544K select 5   0:25  0.00% sshd
  698 root         1  96    0  8952K  2516K select 0   0:02  0.00% ntpd
  779 root         1  96    0 20952K  3740K select 0   0:01  0.00% sshd
89816 root         1 100    0 86332K 13340K select 6   0:01  0.00% httpd
18074 root         1  20    0  9616K  3208K pause  0   0:01  0.00% csh
  786 root         1   8    0  5736K  1388K nanslp 2   0:01  0.00% cron
  765 root         1   4    0  4852K  1640K kqread 5   0:00  0.00% master


    2 users    Load  7.14  7.38  6.83                  Nov 21 16:20

Mem:KB    REAL            VIRTUAL                       VN PAGER   SWAP PAGER
        Tot   Share      Tot    Share    Free           in   out     in   out
Act  337476   33184   630700    37128 3249600  count
All  397780   35216  4900464    48580          pages
Proc:                                                            Interrupts
  r   p   d   s   w   Csw  Trp  Sys  Int  Sof  Flt    331 cow   20208 total
  4       2  43   2   28k  33k 112k 4228  989  31k  31162 zfod        sio0 irq4
                                                          ozfod       ata0 irq14
 8.2%Sys   0.1%Intr 48.3%User  0.0%Nice 43.5%Idle        %ozfod       mfi0 irq18
|    |    |    |    |    |    |    |    |    |    |       daefr       uhci0 uhci
====>>>>>>>>>>>>>>>>>>>>>>>>                         3413 prcfr  1972 cpu0: time
                                         9 dtbuf    26138 totfr  4228 em0 irq256
Namei     Name-cache   Dir-cache    100000 desvn          react  2021 cpu2: time
   Calls    hits   %    hits   %     10544 numvn          pdwak  2021 cpu3: time
   88017   88017 100                   283 frevn          pdpgs  1983 cpu6: time
                                                          intrn  1983 cpu7: time
Disks mfid0                                        241756 wire   1972 cpu1: time
KB/t   0.00                                        313748 act    2014 cpu4: time
tps       0                                        196500 inact  2014 cpu5: time
MB/s   0.00                                           256 cache
%busy     0                                       3247264 free
                                                   206320 buf




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