> I just answered most of your questions on your help ticket, but it may be a > while before our support team passes my reply on Not a problem- I wanted to get as much insight as possible and have somewhere to document my findings for anyone else that comes along.
> I believe those last 3 (pcplusmp*) are no longer required in this version of > opensolaris, but they should check the web to confirm. See > http://www.solarisinternals.com/wiki/index.php/Networks I've been using the SolarisInternals wiki but some of the information seems out of date and/or contradictory to what Myricom recommends. For example: Myricom recommends a tcp_recv_hiwat that is twice what the SolarisInternals wiki recommends. I'm using the Myricom recommendation. SolarisInternals also recommends setting ip_soft_rings_cnt but I don't see it in ndd and it's commitment level is listed as obsolete here: http://download.oracle.com/docs/cd/E19082-01/819-2724/gbsbo/index.html Does anyone know if this tunable still exists? I've tried querying ndd -get /dev/ip ? as well as a few other places and don't see it anywhere. > I think b147 has fixed the 2 mblk chain limit that forces packets > through a slow path in TCP, so you can probably increase that to 8. I'll give that a try. Thanks. > Some of these proposed settings (myri10ge_use_msix=0; > myri10ge_max_slices=1;) disable multiple slices, and negate the > ddi_msix_alloc_limit tuning. So do one or the other, but not both :) Yes- I won't be using both- I was just trying to figure out which one made the most sense for my workload. > Most of the "low latency" tuning suggestions you found are for workloads > like HFT, where every microsecond matters. For a fileserver, I'd > suggest optimizing for CPU utilization (eg, bandwidth). And that is the exact bit of information I was looking for- Thanks! -Don -- This message posted from opensolaris.org _______________________________________________ networking-discuss mailing list [email protected]
