If you have any updates on this, please let me know. There is still time for 10.4.
On Thu, Sep 7, 2017 at 11:04 PM, Paul Koch <paul.k...@akips.com> wrote: > On Thu, 7 Sep 2017 13:51:11 +0800 > Sepherosa Ziehau <se...@freebsd.org> wrote: > >> Weird, your traffic pattern does not even belong to anything heavy. >> Sending is mainly UDP, which will never be able to saturate the TX >> buffer ring causing the RXBUF ACK sending failure. This is weird. > > It's a bit tricky. The poller is very fast. We ping every device every 15 > seconds, and collect every MIB object every 60 seconds. The poller "rate > limits" itself by dividing each minute into 100ms time slots and only sends a > specific amount of pings/snmp packets in each time slot. The problem is, it > blasts the request packets out really fast at the start of each time slot, > and then sits in a receive loop until the next time slot comes around. The > requests are not paced over the 100ms, therefore it will blast out a lot > of packets in a few milliseconds. > > We use to use a 1 second rate limiting time slot, and didn't interlace > ping/snmp requests, but we found certain interface types on Cisco 6509 > switches couldn't keep up with back-to-back pings and would lose them. > > >> Anyhow, make sure to test this patch: >> 8762017-Sep-07 02:19 hn_inc_txbr.diff > > Yep. Might take a bit of time to test though because we'll need to get the > customer to spin up a test VM on the same platform, and they are fairly > remote (Perth, Australia). We don't run any Microsoft servers/HyperV setups > in our lab. > > Paul. > -- > Paul Koch | Founder | CEO > AKIPS Network Monitor | akips.com > Brisbane, Australia -- Tomorrow Will Never Die _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
