Date: Wed, 14 Aug 2013 21:00:16 -0700 From: Vijay Singh <vijju.singh@gmail.com> To: Adrian Chadd <adrian@freebsd.org> Cc: Lawrence Stewart <lstewart@freebsd.org>, Lev Serebryakov <lev@freebsd.org>, Luigi Rizzo <rizzo@iet.unipi.it>, FreeBSD Net <net@freebsd.org> Subject: Re: it's the output, not ack coalescing (Re: TSO and FreeBSD vs Linux) Message-ID: <BBF40680-9C93-4C86-B7B4-B62ADD1FD41B@gmail.com> In-Reply-To: <CAJ-VmokxgWKeuPFGEE-wzLcYpyt3Ua90JZH2BBTj39LoTSUsMg@mail.gmail.com> References: <520A6D07.5080106@freebsd.org> <520AFBE8.1090109@freebsd.org> <520B24A0.4000706@freebsd.org> <520B3056.1000804@freebsd.org> <20130814102109.GA63246@onelab2.iet.unipi.it> <587579055.20130814154713@serebryakov.spb.ru> <CAJ-VmokxgWKeuPFGEE-wzLcYpyt3Ua90JZH2BBTj39LoTSUsMg@mail.gmail.com>
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Is that what FLOWTABLE does? Also we need a mechanism to record time spent a= t various layers in the stack. Luigi has used his own methods but we're lack= ing something more generic. At work we have some crude tools that use mcount= information to indirectly measure costs but they are not reliable and only p= rovide partial information. Sent from my iPhone On Aug 14, 2013, at 11:11 AM, Adrian Chadd <adrian@freebsd.org> wrote: > On 14 August 2013 04:47, Lev Serebryakov <lev@freebsd.org> wrote: >=20 >=20 >> And we should invalidate this info on ARP/route changes, or connection >> will be lost in such cases, am I right?.. So, on each such event code >> should look into all sockets and check, if routing/ARP information is >> still >> valid for them. Or we should store lists of sockets in routing and ARP >> tables... I don't know, what is worse. >=20 > .. or per-CPU copies of the ARP table.. ? >=20 >=20 >=20 > -adrian > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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