Messages in this thread |  | | Date | Thu, 18 Jan 2001 22:18:38 +0200 (MET DST) | | From | Szabolcs Szakacsits <> | | Subject | Re: 2.4.1pre8 slowdown on dbench tests |
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On Thu, 18 Jan 2001, Marcelo Tosatti wrote:
> On my dbench runs I've noted a slowdown between pre4 and pre8 with 48 > threads. (128MB, 2 CPU's machine)
Below some kernel compile numbers on a 32 MB RAM + 32 MB swap box. The three lines mean compilation with the -j1, -j2 and -j4 option. Most of the time 2.4.1pre8 was also unable to compile the kernel because cc1 was killed by OOM handler.
Szaka
2.2.18 548.27user 94.18system 10:50 98%CPU (450479major+696869minor) 548.94user 153.85system 11:51 98%CPU (487111major+704948minor) 599.44user 2018.66system 51:47 84%CPU (2295045major+1182819minor) ========= 2.4.0 557.18user 121.57system 11:25 99%CPU (442434major+705429minor) 551.76user 158.78system 12:11 97%CPU (446183major+711572minor) 579.65user 2860.53system 1:05:45 87%CPU (650964major+1209969minor) =========== 2.4.0+blk-13B 546.89user 140.35system 11:33 99%CPU (442435major+705424minor) 570.73user 188.51system 12:56 97%CPU (445171major+712791minor) 566.33user 2681.20system 1:02:26 86%CPU (654402major+1225784minor) ================= 2.4.1pre8 546.23user 118.81system 11:09 99%CPU (442434major+705424minor) 569.12user 161.25system 12:22 98%CPU (446667major+712457minor) 727.58user 2489.96system 1:25:34 62%CPU (616240major+1375321minor)
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