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Date: Wed, 15 Feb 2012 03:18:16 -0500 From: Bill Fink <billfink@...dspring.com> To: Eric Dumazet <eric.dumazet@...il.com> Cc: Neal Cardwell <ncardwell@...gle.com>, alekcejk@...glemail.com, netdev@...r.kernel.org Subject: Re: limited network bandwidth with 3.2.x kernels On Wed, 15 Feb 2012, Eric Dumazet wrote: > Le mercredi 15 février 2012 à 02:52 -0500, Bill Fink a écrit : > > > Would it be useful to check if there was any difference in > > TCP parameters between the 3.1 and 3.2 kernels by performing > > the following on each: > > > > grep . /sys/module/tcp_*/parameters/* > > > > -Bill > > I did yesterday and found nothing interesting. Do your SYSCTL1 and SYSCTL2 files include /sys/module/tcp_* as well as /proc/sys? Not that I know of anything that might have changed in /sys/module/tcp_* between 3.1 and 3.2, but you never know what a particular distro might have tweaked. -Bill > # diff SYSCTL1 SYSCTL2 > 13a14 > > kernel.sched_cfs_bandwidth_slice_us = 5000 > 18c19 > < kernel.tainted = 513 > --- > > kernel.tainted = 4609 > 33c34 > < kernel.threads-max = 48402 > --- > > kernel.threads-max = 48398 > 35c36 > < kernel.random.entropy_avail = 2200 > --- > > kernel.random.entropy_avail = 1715 > 38,39c39,40 > < kernel.random.boot_id = da6427fc-eb8e-40a8-8809-8cae94a65fb5 > < kernel.random.uuid = 118c4362-a2a2-4973-ab3e-a09a0ed306ff > --- > > kernel.random.boot_id = 2f77031a-9e65-4358-9c02-09058831507a > > kernel.random.uuid = 44cdd730-9c00-4a85-87c3-0a5b1c7c1278 > 52a54 > > kernel.cap_last_cap = 35 > 102,103c104,105 > < kernel.osrelease = 2.6.41.10-3.fc15.i686 > < kernel.version = #1 SMP Mon Jan 23 15:44:18 UTC 2012 > --- > > kernel.osrelease = 2.6.42.3-2.fc15.i686 > > kernel.version = #1 SMP Thu Feb 9 01:39:19 UTC 2012 > 111c113 > < kernel.msgmni = 1675 > --- > > kernel.msgmni = 1674 > 116c118 > < kernel.pty.nr = 2 > --- > > kernel.pty.nr = 3 > 152,155c154,157 > < fs.inode-nr = 9875 61 > < fs.inode-state = 9875 61 0 0 0 0 0 > < fs.file-nr = 7328 0 309733 > < fs.file-max = 309733 > --- > > fs.inode-nr = 23853 1607 > > fs.inode-state = 23853 1607 0 0 0 0 0 > > fs.file-nr = 6112 0 309720 > > fs.file-max = 309720 > 157c159 > < fs.dentry-state = 9913 1327 45 0 0 0 > --- > > fs.dentry-state = 27730 17922 45 0 0 0 > 168c170 > < fs.epoll.max_user_watches = 337762 > --- > > fs.epoll.max_user_watches = 337644 > 272c274 > < net.netfilter.nf_conntrack_count = 62 > --- > > net.netfilter.nf_conntrack_count = 26 > 284,285c286,287 > < net.core.wmem_default = 114688 > < net.core.rmem_default = 114688 > --- > > net.core.wmem_default = 163840 > > net.core.rmem_default = 163840 > 301d302 > < net.ipv4.route.gc_interval = 60 > 601c602 > < net.ipv6.conf.all.regen_max_retry = 5 > --- > > net.ipv6.conf.all.regen_max_retry = 3 > 630c631 > < net.ipv6.conf.default.regen_max_retry = 5 > --- > > net.ipv6.conf.default.regen_max_retry = 3 > 659c660 > < net.ipv6.conf.lo.regen_max_retry = 5 > --- > > net.ipv6.conf.lo.regen_max_retry = 3 > 688c689 > < net.ipv6.conf.eth0.regen_max_retry = 5 > --- > > net.ipv6.conf.eth0.regen_max_retry = 3 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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