Wojciech Puchar wrote: > > > Wojciech Puchar <woj...@wojtek.tensor.gdynia.pl> writes: > >> Why it's THAT bad? > > > > http://svn.freebsd.org/base/head/sys/pci/if_rl.c > > > > Scroll down past the copyright, license and attribution. Read the > > 38-line comment that explains just how crappy this chip really is. > > Well - really "low end". > > But - this computer can do memcpy at 80MB/s, so at 3.5MB/s it should be 5% > CPU for memcpy, and one interrupt per one packet (2500 packets/s). > > Is something more that make it consume >50% CPU?
Accessing the on-card memory through PCI is guaranteed to be slower than the main memory, and depending on the particular card it may be much slower. -SB _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
