Debugging Network Performance
From: Allen Curtis <hidden>
Date: 2002-06-04 03:27:33
I was wondering if anyone could provide some pointers on monitoring and debugging network communications. The performance of Ethernet communications seems to vary with kernel revisions. I would like to analyze this problem but I need a little guidance on the issue. TIA! =========== Previous 8260 Ethernet email ================== 2. Some relative performance measurements (HHL 2.4.2 vs. 2.4.19pre9) 10T Hub | 100BT switch -------------------------------------| 2.4.2 | 410KBps | 750KBps | -------------------------------------| 2.4.19 | 440KBps | 190KBps | -------------------------------------- RedHat 2.4.18-3 (x86) 3900KBps 3. TOP shows as much as 48% system utilization during a single FTP transfer. With the fix mentioned in #1, there are 0 errors reported by ifconfig. I may be missing something but I believe that these numbers are going the wrong way. There is still the question of performance decrease when using a 100BT switch. Signal intregety can not be the only suspect considering the performance did increase using an older version of the kernel. (although nothing like the Workstation performance) ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/