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Re: V2.4 policy router operates faster/better than V2.6

To: netdev@xxxxxxxxxxx
Subject: Re: V2.4 policy router operates faster/better than V2.6
From: "Jeremy M. Guthrie" <jeremy.guthrie@xxxxxxxxxx>
Date: Fri, 7 Jan 2005 14:14:01 -0600
Cc: Robert Olsson <Robert.Olsson@xxxxxxxxxxx>, Stephen Hemminger <shemminger@xxxxxxxx>
In-reply-to: <200501071338.16621.jeremy.guthrie@xxxxxxxxxx>
Organization: Berbee Information Networks
References: <200501031455.26980.jeremy.guthrie@xxxxxxxxxx> <16862.57504.383176.640058@xxxxxxxxxxxx> <200501071338.16621.jeremy.guthrie@xxxxxxxxxx>
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I just updated the Intel Drivers to the latest on source-forge(5.6.10.1).  I 
now see lower CPU usage but I am still dropping.

During a 60 second window the machine received 5,110,164 packets and dropped 
20461 or roughly 0.4% packet loss.

cat /proc/net/softnet_stat
2f9c9bd0 150dc67c 00c4701b 000d2659 00000000 00000000 00000000 00000000 
00097049
00010f9b 00000000 0000003a 00000000 00000000 00000000 00000000 00000000 
000002fc
It has been at 150dc67c for a while now.  So while I am dropping at the card, 
I am not dropping in the stack.

mpstat -P ALL 2
Linux 2.6.10 (h-idspr-msn-1)    01/07/05

14:06:45     CPU   %user   %nice %system %iowait    %irq   %soft   %idle    
intr/s
14:06:47     all    0.00    0.00    0.00    0.75    1.74   43.03   54.48  
22598.51
14:06:47       0    0.00    0.00    0.00    0.00    2.49   78.61   18.91  
17570.65
14:06:47       1    0.00    0.00    0.00    1.49    1.49    7.46   90.05   
5023.88

14:06:47     CPU   %user   %nice %system %iowait    %irq   %soft   %idle    
intr/s
14:06:49     all    0.00    0.00    0.00    0.00    1.50   45.75   52.75  
19352.00
14:06:49       0    0.00    0.00    0.00    0.00    2.50   83.00   14.50  
14467.00
14:06:49       1    0.00    0.00    0.00    0.00    0.50    9.00   90.50   
4886.50

14:06:49     CPU   %user   %nice %system %iowait    %irq   %soft   %idle    
intr/s
14:06:51     all    0.00    0.00    0.00    0.00    1.75   42.50   55.75  
22482.59
14:06:51       0    0.00    0.00    0.00    0.00    2.49   77.61   19.90  
17572.64
14:06:51       1    0.00    0.00    0.50    0.00    1.00    6.97   91.54   
4919.90

14:06:51     CPU   %user   %nice %system %iowait    %irq   %soft   %idle    
intr/s
14:06:53     all    0.00    0.00    0.25    0.00    1.99   43.03   54.73  
22458.00
14:06:53       0    0.00    0.00    0.00    0.00    3.00   78.50   18.50  
17456.00
14:06:53       1    0.00    0.00    0.00    0.00    0.50    8.00   91.00   
4992.50

14:06:53     CPU   %user   %nice %system %iowait    %irq   %soft   %idle    
intr/s
14:06:55     all    0.00    0.00    0.00    0.00    1.75   42.75   55.50  
22854.00
14:06:55       0    0.00    0.00    0.00    0.00    3.00   77.00   20.00  
17838.00
14:06:55       1    0.00    0.00    0.00    0.00    1.00    8.50   91.00   
5012.50


-- 

--------------------------------------------------
Jeremy M. Guthrie        jeremy.guthrie@xxxxxxxxxx
Senior Network Engineer        Phone: 608-298-1061
Berbee                           Fax: 608-288-3007
5520 Research Park Drive         NOC: 608-298-1102
Madison, WI 53711

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