Messages in this thread | | | Date | Sun, 10 Jan 1999 01:58:01 +0100 (CET) | From | Eva Hocks <> | Subject | ftp performance - kernel network options |
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Though I set the CONFIG_SKB_LARGE=y I experience performance problems with ftp (L8 Version BSD-44), kernel is at 2.2.0.pre4. Using the linux ftp client command "get" through an ISDN connection (MTU 1500) to an AIX server connected via ethernet (MTU 1500) one package is sent, and a waiting time of about 20 seconds before the next package is transfered. It looks like the Nagle Algorithm or delayed ACK timer causes the delay on the acknowledgement. TCP window is 32K on AIX and RFC1323 is enabled as well.
When I however use the linux ftp server (wu-2.4.2-academ[BETA-15]), that is, run the ftp "put" from the AIX box, the transfer is at to a steady rate of about 4KB/s.
Where to tune the MIN/MAX_WINDOW and the delay_acks?
Thanks for any advise,
-Eva
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