Date: Mon, 27 Aug 2012 12:26:03 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org, lev@freebsd.org Subject: Re: What is "Fast task queue"? (Was: How to understand what `swi5' kernel thread does?) Message-ID: <201208271226.03496.jhb@freebsd.org> In-Reply-To: <198519466.20120827164646@serebryakov.spb.ru> References: <135297243.20120827061957@serebryakov.spb.ru> <198519466.20120827164646@serebryakov.spb.ru>
index | next in thread | previous in thread | raw e-mail
On Monday, August 27, 2012 8:46:46 am Lev Serebryakov wrote: > Hello, Lev. > You wrote 27 августа 2012 г., 6:19:57: > > I've found (with help of debug printing added to kernel), that "swi5" > has only one handler "Fast task queue" (name is too long to be seen in > `top' output, may be, rename it to "fast tqueue"?) > > What "fast tasks" are performed via this queue? Under network load it > is main consumer of CPU. Certain NIC drivers perform much of their interrupt handling in that thread. -- John Baldwinhelp
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201208271226.03496.jhb>