Re: [PATCH v2 net-next 1/4] net: implement support for low latency socket polling
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From: Eliezer Tamir <hidden>
Date: 2013-05-21 06:16:37
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On 20/05/2013 19:22, Andi Kleen wrote:
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diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index f98ca63..cfcf0ea 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt@@ -19,6 +19,11 @@ ip_no_pmtu_disc - BOOLEAN Disable Path MTU Discovery. default FALSE +ip_low_latency_poll - INTEGER + Low latency busy poll timeout. (needs CONFIG_INET_LL_RX_POLL) + Approximate time in ms to spin waiting for packets on the device queue. + default 0Can you document the suggested value here?
ok
Also I would add something like "may increase power usage"
:)
The other thing I would add is a linuxmib statistic counter so that we can see the polling happens.
Yes, I will add a counter for packets that were received through this path. Eliezer ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_may _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired