-- Stanislav Sedov wrote : On Wed, 5 Aug 2009 00:30:20 -0700 (PDT) alexpalias-bsdsta...@yaho... mentioned:
>> dev.em.0.rx_processing_limit=300 >> dev.em.1.rx_processing_limit=300 >> dev.em.2.rx_processing_limit=300 >> dev.em.3.rx_processing_limit=300 > This tunables only affects polling mode. Do you use polling with this > adapters or just standard interrupt-based mode? Why? In if_em.c, em_rxeof() is used both in legacy polling and in fast-interrupts / MSIX interrupts modes. I have the same problem of many Ierrs on input on em0 at a load of 500-600 mbps, and increasing rx_processing_limit (or setting it to -1) doesn't help at all. em0: Receive No Buffers = 4442943 em0: RX overruns = 83367 Next thing I'll try will be hw.em.rxd=4096. I don't think polling would help as it is not the interrupt load causing the drops (as evidenced by top -HS), but rather insufficiently large input buffers. -- This message was sent on behalf of ri...@mail.ru at openSubscriber.com http://www.opensubscriber.com/message/freebsd-stable@freebsd.org/12647494.html _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
