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Date: Sun, 13 Mar 2016 04:14:34 +0300
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Navdeep Parhar <np@FreeBSD.org>
Cc: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: Re: svn commit: r296689 - head/sys/dev/cxgbe
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On Fri, Mar 11, 2016 at 11:24:05PM +0000, Navdeep Parhar wrote:

> Author: np
> Date: Fri Mar 11 23:24:04 2016
> New Revision: 296689
> URL: https://svnweb.freebsd.org/changeset/base/296689
> 
> Log:
>   cxgbe(4): sysctls to display the TOE's TCP timers.
>   
>   cask:~# sysctl -d dev.t5nex.0.toe
>   dev.t5nex.0.toe.finwait2_timer: FINWAIT2 timer (us)
>   dev.t5nex.0.toe.initial_srtt: Initial SRTT (us)
>   dev.t5nex.0.toe.keepalive_intvl: Keepidle interval (us)
>   dev.t5nex.0.toe.keepalive_idle: Keepidle idle timer (us)
>   dev.t5nex.0.toe.persist_max: Persist timer max (us)
>   dev.t5nex.0.toe.persist_min: Persist timer min (us)
>   dev.t5nex.0.toe.rexmt_max: Retransmit max (us)
>   dev.t5nex.0.toe.rexmt_min: Retransmit min (us)
>   dev.t5nex.0.toe.dack_timer: DACK timer (us)
>   dev.t5nex.0.toe.dack_tick: DACK tick (us)
>   dev.t5nex.0.toe.timestamp_tick: TCP timestamp tick (us)
>   dev.t5nex.0.toe.timer_tick: TP timer tick (us)
>   ...
>   
>   cask:~# sysctl dev.t5nex.0.toe
>   dev.t5nex.0.toe.finwait2_timer: 9765440
>   dev.t5nex.0.toe.initial_srtt: 244128
>   dev.t5nex.0.toe.keepalive_intvl: 73240800
>   dev.t5nex.0.toe.keepalive_idle: 7031116800
>   dev.t5nex.0.toe.persist_max: 9765440
>   dev.t5nex.0.toe.persist_min: 976544
>   dev.t5nex.0.toe.rexmt_max: 9765440
>   dev.t5nex.0.toe.rexmt_min: 244128
>   dev.t5nex.0.toe.dack_timer: 19520
>   dev.t5nex.0.toe.dack_tick: 32.768
>   dev.t5nex.0.toe.timestamp_tick: 1048.576
>   dev.t5nex.0.toe.timer_tick: 32.768
>   ...

Can you more describe it in man?
I am see this timers different from system, is this problem? What
correlations between?