Bad net IO performance probably due to misconfiguration
Today I started putting old stuff on my server - and had to notice that data is only dripping instead of flowing.
On Sun, 24 Jul 2005 18:58:31 -0700, freddie Any Linux distro with even the resource hungry KDE or GNOME desktops will run just fine on the latter two systems. Since...
Configurations are as following:
3 systems new linux (now win9x user) user (some unix background). sys1 (ha) presario 150MHZ laptop...
Source machine: Samsung P35 Laptop (BTW excellent for Linux use) 512MB RAM NIC: RTL-8139-8139C-8139C+ Kernel 2.6.11 Gentoo Patchset R6
Destination Machine: Asus P2B-DS (Intel 440BX Chipset) 768MB RAM Kernel 2.6.11 Gentoo Patchset R11
To copy stuff I'm using a pair of
which works, but data is comming through at only ~0.8MB-sec whereas the used 100MBit-sec switched Ethernet would be capable of theoretically ~11MB-sec (minus the overhead) so together with the bzip2 compression I'd expect about 15MB-sec.
CPU load on both src and dst never go over 60% so I'm pretty sure I have problems with some configuration. Testwise I also connected both machines using IEEE1394, but data rate is about the same, and IEEE1394 takes 400MBit-sec (ok, I know the Linux eth1394 is not so well performing).
Still this is quite a poor performance and I wonder what things I could have missed in my config (I still remember my system stalling just because I had the (at this time new) IRQ balancing option disabled).
Wolfgang Draxinger --
3 systems new user advice needed
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