Date: Sat, 29 Sep 2007 14:02:40 +0900 From: Pyun YongHyeon <pyunyh@gmail.com> To: freebsd-hardware@freebsd.org, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: nfe driver 6.2 stable Message-ID: <20070929050240.GC11457@cdnetworks.co.kr> In-Reply-To: <20070929022147.GA27590@lizzy.catnook.local> References: <3aaaa3a0709231657r3264c873ife71800731608b03@mail.gmail.com> <20070924020116.GA36909@eos.sc1.parodius.com> <3aaaa3a0709240844j2603a050nd09bb5482a0f3c21@mail.gmail.com> <20070927065155.GE3692@cdnetworks.co.kr> <3aaaa3a0709271030k24892099ra3409ce6f5f7020f@mail.gmail.com> <20070928000656.GA7119@cdnetworks.co.kr> <3aaaa3a0709281105g1503fdbcu70910de6eae060a0@mail.gmail.com> <20070929012801.GA11457@cdnetworks.co.kr> <20070929022147.GA27590@lizzy.catnook.local>
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On Fri, Sep 28, 2007 at 07:21:47PM -0700, Jos Backus wrote: > On Sat, Sep 29, 2007 at 10:28:01AM +0900, Pyun YongHyeon wrote: > [snip] > > ATM nfe(4)'s interrupt moderation mechanism doesn't seem to work > > at all so nfe(4) generates too many interrupts. However I don't > > think it wouldn't be major bottleneck of the performance. > > Could this be why (on -current) I had to enable polling on nfe0 to get rid of > the choppy audio playback I was experiencing? > Probably not. Maybe nfe(4) use shared interrupt. Check the output of "vmstat -i". -- Regards, Pyun YongHyeon
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