Messages in this thread |  | | Date | Thu, 9 May 1996 11:56:33 -0300 (ADT) | From | SkiBum <> | Subject | Re: Slow ethernet/NE2000 with all 1.3 kernels (1.2 is fine) |
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On Tue, 7 May 1996, Jamie Lokier wrote:
> I've done some tests sending raw ethernet packets using SOCK_PACKET, > with 1.2.13 and 1.3.81 on exactly the same machine. The software > configuration is identical (I simply brought up different kernels). > The program is included at the end of this message so people can see if > the same problem exists with non-NE2000 cards. > > I hope SOCK_PACKET has abolutely nothing to with the TCP window. The > ISA bus speed is the same for both kernels, as it's the same machine > within a few minutes. > > New summary: 1.2.13 -> ~ 1197k/s raw data transmission rate > 1.3.81 -> ~ 745k/s raw data transmission rate > > Included below are the detailed results and the program. > > Enjoy, > -- Jamie Lokier > > Results: > > Linux 1.2.13: > > mustelid:~# ./etherspray > Transmitted 7570000 bytes in 6.321147 seconds (1197.6k/sec). > > Linux 1.3.81: > > mustelid:~# ./etherspray > Socket destroy delayed (r=0 w=64740) > Transmitted 7570000 bytes in 10.091485 seconds (750.1k/sec). > > Linux 1.3.97 gives similar results to 1.3.81. (I tested it on > a similar, but different machine).
I get pretty good performance on 1.3.99.
abyss ~ #./etherspray Transmitted 7570000 bytes in 6.125325 seconds (1235.9k/sec). abyss ~ #./etherspray Transmitted 7570000 bytes in 6.123016 seconds (1236.3k/sec). abyss ~ #./etherspray Transmitted 7570000 bytes in 6.123433 seconds (1236.2k/sec).
That's on a 3-Com 3c595 running in 10MBit mode.
Brad Borgald Networks Computing Services University of New Brunswick Fredericton New Brunswick, Canada, Electrical Engineering p7gz@unb.ca root@force.crt .unb.ca bborgald@hhnov1.unb.ca Linux! Solomon, No Fear! GUS PnP, The North Face If I wanted to be able to spell, I would have taken Arts... #include <stddisclaim.h>
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