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Change the comment about sucky performance to recommendation to remove

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DIAGNOSTIC/DEBUG from the kernel. This helped to boost the performance
on my test machine from ~5KB/s to like 800KB/s for ftp test, and
to like 700KB/s for netio test. I wouldn't have imagined the options
are THAT costly ....
This commit is contained in:
jdolecek 2001-05-13 20:43:04 +00:00
parent d4ede5e1e5
commit 2cd8833615
1 changed files with 4 additions and 10 deletions
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14
sys/dev/mca/if_ep_mca.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_ep_mca.c,v 1.3 2001/04/23 06:10:08 jdolecek Exp $ */
/* $NetBSD: if_ep_mca.c,v 1.4 2001/05/13 20:43:04 jdolecek Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -70,15 +70,9 @@
/*
* Driver for 3Com 3c529 cards.
*
* Known issues:
* - on my 386DX, speed of network is like 100KB/s at best; for bigger
* files fetched e.g. via ftp, I get as low as 5KB/s, mostly due
* to excessive number of overrun packets. Configuring system to
* use smaller TCP window might help, though the performance is
* still expected to be very dependant on CPU speed, especially
* since ISA and PCI attachments are reported to work OK on pentium
* class systems.
* Changing ic/elink3.c to use RX Early might help here potentially.
* If you encouter sucky performance, try kernel without DEBUG/DIAGNOSTIC.
* This helped on my test machine to change the performance of the card
* from like 5KB/s to like 800 KB/s.
*/
#include <sys/param.h>