On 01/15/11 21:26, Ted Unangst wrote: > On Sat, Jan 15, 2011 at 1:33 PM, Christopher Zimmermann > <[email protected]> wrote: >> I experience very high cpu loads when using my pcmcia ethernet card >> with more than 4Mbit/s. I get the same behaviour for a ep(4) 100MBit >> fast ethernet and ne(4) 10MBit ethernet card. Both 16bit pcmcia. >> The distribution between interrupt and system load seems to be a bit >> strange, also the load goes up very quick after passing the 4MBit >> threshold. > > That doesn't sound surprising. pcmcia is not, by modern standards, a > high speed interface.
Hmm, pcmcia should be capable of 16Mbit(byte?)/s. But what I really don't understand is, why the system load is 0 until the traffic reaches 4MBit and then increases until it reaches 100% at only 8MBit. I'm also quite sure, the cards did both perform with higher throughputs on linux 2.4, but I'll test it again with a 2.6 kernel. Christopher
