Messages in this thread |  | | From | (really ) | Date | 27 Jun 1996 23:25:23 +0400 | Subject | Re: real kernel bloat |
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Alex Krimkevich (alex@magneton-ra.swmed.EDU) wrote: : I run 2.0 kernel, networking is built in, not a module. My ethernet : card is 3c509. Not as good as yours, but manages 800 Kb/s on the : same machine ftping from the same host under NT. As a matter of fact, : I remember seeing transfer rates similar to that under 1.3.20. : So, probably, it's not a hardware deficiencies.
Just for curiosity I tested 4 computers. The results are pretty interesting, I do not try interpret them here. Any comments?
amber - old i386, 24MHz, no cache, ISA, RLL(!) HD, 8Mb, NE2000, v1.99.9 lar - Pentium, 133MHz, 512k cache, PCI, AIC, 64Mb, 3c590, v1.99.9 dee - Pentimu, 133MHz, 256k cache, PCI, AIC, 32Mb, 3c590, v2.0.0 flint - SS20, 50MHz, 1Mb cache, SBus, ???????, 64Mb, lance, SunOS-5.4
Transfers targeted to disk are shown only for amber; at other hosts disk and /dev/null show the same results.
FTP
amber:/dev/null <- flint 1906992 bytes received in 4.33 secs (4.3e+02 Kbytes/sec) amber:disk <- flint 1906992 bytes received in 9.71 secs (1.9e+02 Kbytes/sec)
amber:/dev/null <- lar 4509132 bytes received in 6.96 secs (6.3e+02 Kbytes/sec) amber:disk <- lar 4509132 bytes received in 15.6 secs (2.8e+02 Kbytes/sec)
lar:/dev/null <- flint 1906992 bytes received in 1.98 secs (9.4e+02 Kbytes/sec)
flint:/dev/null <- lar 4509132 bytes received in 4.32 secs (1e+03 Kbytes/sec)
NFS:
amber:/dev/null <- flint (1907Kb) 0:04.70elapsed -> 406Kb/sec
lar:/dev/null <- flint (1907Kb) 0:02.02elapsed -> 944Kb/sec
flint:/dev/null <- lar (4509Kb) real 5.8 -> 777Kb/sec
flint <- lar is pretty low. Maybe, is Linux NFS server slow? Let's check:
dee:/dev/null <- lar (4509Kb) 0:05.09elapsed -> 886Kb/sec
Alexey Kuznetsov.
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