Re: Lots of Interrupts when accessing a NFS share

["Joel CARNAT" <joel%carnat.net@localhost>]

>> ==========
>> rtk0 at pci0 dev 8 function 0: Realtek 8139 10/100BaseTX (rev. 0x10)
>> rtk0: interrupting at irq 11
>> rtk0: Ethernet address 00:30:18:4a:2e:88
>> rlphy0 at rtk0 phy 7: Realtek internal PHY
>> ==========
>
> I really don't know if our rtk driver can be improved to squeeze the
> last drip of performance out this card if there's still any, but that
> comment certainly doesn't look encouraging.
>

Would that help ?

MFC, rev. 1.147:
  Adjust TX threshold on every TX underrun.  Some supported cards
  (8139-based) can retransmit on TX underrun and set TOK in addition to
  TUND.  Also add a check to prevent overflow of the addressable threshold.

  This fixed some reports of rl(4) slowness, believed to be related to ALTQ
  before.

http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/pci/if_rl.c.diff?r1=1.145.2.1;r2=1.145.2.2;f=h

Regards,
    Jo