Re: [PATCH v6 net-next 2/2] tcp: Add Redundant Data Bundling (RDB)

2016-03-14 Thread Bill Fink
On Mon, 14 Mar 2016, Yuchung Cheng wrote: > On Thu, Mar 3, 2016 at 10:06 AM, Bendik Rønning Opstad > wrote: > > > > Redundant Data Bundling (RDB) is a mechanism for TCP aimed at reducing > > the latency for applications sending time-dependent data. ... > > diff --git a/Documentation/networking/ip

Re: [IPV6]: Fix IPsec datagram fragmentation

2008-02-14 Thread Bill Fink
Hi Herbert, On Fri, 15 Feb 2008, Herbert Xu wrote: > On Tue, Feb 12, 2008 at 06:08:28PM -0800, David Miller wrote: > > > > > [IPV6]: Fix IPsec datagram fragmentation > > > > Applied, and I'll queue this up to -stable as well. > > Sorry, David Stevens just told me that it doesn't work as intende

Re: e1000 full-duplex TCP performance well below wire speed

2008-01-31 Thread Bill Fink
; >> the PCI-e x1 bus past its limits. However the evidence seems to show > >> otherwise: > >> > >> (1) Bill Fink has reported the same problem on a NIC with a 133 MHz > >> 64-bit PCI connection. That connection can transfer data at 8Gb/s. > &g

Re: e1000 full-duplex TCP performance well below wire speed

2008-01-31 Thread Bill Fink
Hi Bruce, On Thu, 31 Jan 2008, Bruce Allen wrote: > > I see similar results on my test systems > > Thanks for this report and for confirming our observations. Could you > please confirm that a single-port bidrectional UDP link runs at wire > speed? This helps to localize the problem to the T

Re: e1000 full-duplex TCP performance well below wire speed

2008-01-31 Thread Bill Fink
On Wed, 30 Jan 2008, SANGTAE HA wrote: > On Jan 30, 2008 5:25 PM, Bruce Allen <[EMAIL PROTECTED]> wrote: > > > > In our application (cluster computing) we use a very tightly coupled > > high-speed low-latency network. There is no 'wide area traffic'. So it's > > hard for me to understand why any

Re: SO_RCVBUF doesn't change receiver advertised window

2008-01-16 Thread Bill Fink
On Tue, 15 Jan 2008, Ritesh Kumar wrote: > Hi, > I am using linux 2.6.20 and am trying to limit the receiver window > size for a TCP connection. However, it seems that auto tuning is not > turning itself off even after I use the syscall > > rwin=65536 > setsockopt(sock, SOL_SOCKET, SO_RCVBUF,

Re: TSO trimming question

2007-12-21 Thread Bill Fink
On Fri, 21 Dec 2007, Ilpo Järvinen wrote: > On Fri, 21 Dec 2007, Bill Fink wrote: > > > On Fri, 21 Dec 2007, Bill Fink wrote: > > > > > Or perhaps even: > > > > > > /* Ok, it looks like it is advisable to defer. */ > > > tp->tso_d

Re: TSO trimming question

2007-12-21 Thread Bill Fink
On Fri, 21 Dec 2007, Bill Fink wrote: > Or perhaps even: > > /* Ok, it looks like it is advisable to defer. */ > tp->tso_deferred = jiffies; > > /* need to return a non-zero value to defer, which means won't >* defer if jiffies == 0 b

Re: [PATCH] [IPROUTE]: A workaround to make larger rto_min printed correctly

2007-12-21 Thread Bill Fink
On Fri, 21 Dec 2007, YOSHIFUJI Hideaki wrote: > In article <[EMAIL PROTECTED]> (at Fri, 21 Dec 2007 11:24:54 +0900), "Satoru > SATOH" <[EMAIL PROTECTED]> says: > > > 2007/12/21, Jarek Poplawski <[EMAIL PROTECTED]>: > > > Jarek Poplawski wrote, On 12/20/2007 09:24 PM: > > > ... > > > > > > > but

Re: TSO trimming question

2007-12-21 Thread Bill Fink
On Fri, 21 Dec 2007, David Miller wrote: > From: Herbert Xu <[EMAIL PROTECTED]> > Date: Fri, 21 Dec 2007 17:29:27 +0800 > > > On Fri, Dec 21, 2007 at 01:27:20AM -0800, David Miller wrote: > > > > > > It's two shifts, and this gets scheduled along with the other > > > instructions on many cpus so

Re: TSO trimming question

2007-12-21 Thread Bill Fink
On Thu, 20 Dec 2007, David Miller wrote: > From: "Ilpo_Järvinen" <[EMAIL PROTECTED]> > Date: Thu, 20 Dec 2007 13:40:51 +0200 (EET) > > > [PATCH] [TCP]: Fix TSO deferring > > > > I'd say that most of what tcp_tso_should_defer had in between > > there was dead code because of this. > > > > Signed

Re: [patch 01/10] e1000e: make E1000E default to the same kconfig setting as E1000

2007-12-14 Thread Bill Fink
On Fri, 14 Dec 2007, Andrew Morton wrote: > On Fri, 14 Dec 2007 15:39:26 -0500 > Jeff Garzik <[EMAIL PROTECTED]> wrote: > > > [EMAIL PROTECTED] wrote: > > > From: Randy Dunlap <[EMAIL PROTECTED]> > > > > > > Make E1000E default to the same kconfig setting as E1000. So people's > > > machiens do

Re: [PATCH net-2.6.25] qdisc: new rate limiter

2007-12-08 Thread Bill Fink
On Sat, 08 Dec 2007, Patrick McHardy wrote: > Patrick McHardy wrote: > > Stephen Hemminger wrote: > >> > >> +struct tc_rlim_qopt > >> +{ > >> +__u32 limit;/* fifo limit (packets) */ > >> +__u32rate;/* bits per sec */ > >> > > > > This seems a bit small, 512mbit is

Re: [PATCH] LRO ack aggregation

2007-11-20 Thread Bill Fink
On Tue, 20 Nov 2007, Andrew Gallatin wrote: > David Miller wrote: > > From: Andrew Gallatin <[EMAIL PROTECTED]> > > Date: Tue, 20 Nov 2007 06:47:57 -0500 > > > >> David Miller wrote: > >> > From: Herbert Xu <[EMAIL PROTECTED]> > >> > Date: Tue, 20 Nov 2007 14:09:18 +0800 > >> > > >> >>

Re: [PATCH 1/2] [IPV4] UDP: Always checksum even if without socket filter

2007-11-19 Thread Bill Fink
On Mon, 19 Nov 2007, David Miller wrote: > From: Andi Kleen <[EMAIL PROTECTED]> > Date: Mon, 19 Nov 2007 16:29:33 +0100 > > > > > > > > > > > All of our options suck, we just have to choose the least sucking one > > > > > and right now to me that's decrementing the counter as much as I > > > > >

Re: [PATCH] net/ipv4/arp.c: Fix arp reply when sender ip 0 (was: Strange behavior in arp probe reply, bug or feature?)

2007-11-19 Thread Bill Fink
On Mon, 19 Nov 2007, Alexey Kuznetsov wrote: > Hello! > > > Is there a reason that the target hardware address isn't the target > > hardware address? > > It is bound only to the fact that linux uses protocol address > of the machine, which responds. It would be highly confusing > (more than conf

Re: [PATCH] net/ipv4/arp.c: Fix arp reply when sender ip 0

2007-11-16 Thread Bill Fink
On Fri, 16 Nov 2007, David Miller wrote: > From: "Jonas Danielsson" <[EMAIL PROTECTED]> > Date: Fri, 16 Nov 2007 09:30:11 +0100 > > > 2007/11/16, David Miller <[EMAIL PROTECTED]>: > > > From: "Jonas Danielsson" <[EMAIL PROTECTED]> > > > Date: Thu, 15 Nov 2007 22:40:13 +0100 > > > > > > > Is there

Re: [PATCH 5/5] introduce udp_rmem and udp_wmem

2007-10-29 Thread Bill Fink
On Mon, 29 Oct 2007, Hideo AOKI wrote: > This patch added /proc/sys/net/udp_rmem and /proc/sys/net/udp_rmem. > Each UDP packet is drooped when the number of pages for socket buffer > is beyond the limit and the socket already consumes minimum buffer. I think you meant /proc/sys/net/ipv4/udp_{r,w}

Re: Throughput Bug?

2007-10-18 Thread Bill Fink
On Thu, 18 Oct 2007, Matthew Faulkner wrote: > Hey all > > I'm using netperf to perform TCP throughput tests via the localhost > interface. This is being done on a SMP machine. I'm forcing the > netperf server and client to run on the same core. However, for any > packet sizes below 523 the throu

Re: Bonding support for eth1394?

2007-10-13 Thread Bill Fink
On Sat, 13 Oct 2007, Stefan Richter wrote: > Roland Dreier wrote: > > There are a few changes to the bonding driver pending that will add > > support for bonding IP-over-InfiniBand interfaces. IPoIB also cannot > > change its HW address, so the patches address that issue. > > > > Once those patc

Re: [ofa-general] Re: [PATCH 2/3][NET_BATCH] net core use batching

2007-10-10 Thread Bill Fink
On Tue, 09 Oct 2007, David Miller wrote: > From: jamal <[EMAIL PROTECTED]> > Date: Tue, 09 Oct 2007 17:56:46 -0400 > > > if the h/ware queues are full because of link pressure etc, you drop. We > > drop today when the s/ware queues are full. The driver txmit lock takes > > place of the qdisc queu

Re: tcp bw in 2.6

2007-10-03 Thread Bill Fink
Tangential aside: On Tue, 02 Oct 2007, Rick Jones wrote: > *) depending on the quantity of CPU around, and the type of test one is > running, > results can be better/worse depending on the CPU to which you bind the > application. Latency tends to be best when running on the same core as takes

Re: [PATCH 2/3][NET_BATCH] net core use batching

2007-10-02 Thread Bill Fink
On Tue, 02 Oct 2007, jamal wrote: > On Tue, 2007-02-10 at 00:25 -0400, Bill Fink wrote: > > > One reason I ask, is that on an earlier set of alternative batching > > xmit patches by Krishna Kumar, his performance testing showed a 30 % > > performance hit for TCP for a s

Re: [PATCH 2/3][NET_BATCH] net core use batching

2007-10-01 Thread Bill Fink
On Mon, 01 Oct 2007, jamal wrote: > On Mon, 2007-01-10 at 00:11 -0400, Bill Fink wrote: > > > Have you done performance comparisons for the case of using 9000-byte > > jumbo frames? > > I havent, but will try if any of the gige cards i have support it. > > As a

Re: [PATCH 2/3][NET_BATCH] net core use batching

2007-09-30 Thread Bill Fink
On Sun, 30 Sep 2007, jamal wrote: > This patch adds the usage of batching within the core. > > cheers, > jamal > [sep30-p2of3 text/plain (6.8KB)] > [NET_BATCH] net core use batching > > This patch adds the usage of batching within the core. > The same test methodology used in introducing txl

Re: e1000 driver and samba

2007-09-19 Thread Bill Fink
On Wed, 19 Sep 2007, L F wrote: > Well, > the issue seems to have gone away as of this morning, but I am > somewhat unsure as to why. > Placement of some things were modified so as to allow shorter cables. > Now there are 3' CAT6 cables everywhere except for the 15' cable > between the two switche

Re: e1000 driver and samba

2007-09-19 Thread Bill Fink
On Wed, 19 Sep 2007, L F wrote: > I have one further question: what should I be doing with the TSO and > flow control? As of now, TSO is on but flow control is off. > I'd like to thank everyone who helped and I'll be trying to see if the > realtek integrated NIC works next. Just my personal opini

Re: e1000 driver and samba

2007-09-18 Thread Bill Fink
On Tue, 18 Sep 2007, Florian Weimer wrote: > * Urs Thuermann: > > > How can a corrupted frame pass the TCP checksum check? > > The TCP/IP checksums are extremely weak. If the corruption is due to > defective SRAM or something like that, it's likely that it causes an > error pattern which is 16-

Re: e1000 driver and samba

2007-09-18 Thread Bill Fink
On 18 Sep 2007, Urs Thuermann wrote: > Bill Fink <[EMAIL PROTECTED]> writes: > > > It may also be a useful test to disable hardware TSO support > > via "ethtool -K ethX tso off". > > All suggestions here on the list, i.e. checking for flow control, >

Re: [PATCH 7/7] CAN: Add documentation

2007-09-17 Thread Bill Fink
On 17 Sep 2007, Urs Thuermann wrote: > Thomas Gleixner <[EMAIL PROTECTED]> writes: > > > Please do, having the patch in mail makes it easier to review and to > > comment. > > OK, here it is: One more typo. > This patch adds documentation for the PF_CAN protocol family. > > Signed-off-by: Oliv

Re: e1000 driver and samba

2007-09-17 Thread Bill Fink
On Mon, 17 Sep 2007, Brandeburg, Jesse wrote: > L F wrote: > > On 9/17/07, Kok, Auke <[EMAIL PROTECTED]> wrote: > >> The statistic we were looking at _will_ increase when running in > >> half duplex, but if it increases when running in full duplex might > >> indicate a hardware failure. Probably y

Re: e1000 driver and samba

2007-09-14 Thread Bill Fink
On Fri, 14 Sep 2007, L F wrote: > > can you describe your setup a bit more in detail? you're writing from a > > linux > > client to a windows smb server? or even to a linux server? which end sees > > the > > connection drop? the samba server? the samba linux client? > Certainly. > I have a LAN,

Re: [PATCH 0/9 Rev3] Implement batching skb API and support in IPoIB

2007-09-14 Thread Bill Fink
On Mon, 27 Aug 2007, jamal wrote: > On Sun, 2007-26-08 at 19:04 -0700, David Miller wrote: > > > The transfer is much better behaved if we ACK every two full sized > > frames we copy into the receiver, and therefore don't stretch ACK, but > > at the cost of cpu utilization. > > The rx coalescing

Re: RFC: possible NAPI improvements to reduce interrupt rates for low traffic rates

2007-09-12 Thread Bill Fink
On Fri, 07 Sep 2007, jamal wrote: > On Fri, 2007-07-09 at 10:31 +0100, James Chapman wrote: > > Not really. I used 3-year-old, single CPU x86 boxes with e100 > > interfaces. > > The idle poll change keeps them in polled mode. Without idle > > poll, I get twice as many interrupts as packets, one

Re: error(s) in 2.6.23-rc5 bonding.txt ?

2007-09-07 Thread Bill Fink
On Fri, 07 Sep 2007, Jay Vosburgh wrote: > Rick Jones <[EMAIL PROTECTED]> wrote: > [...] > >> Note that this out of order delivery occurs when both the > >> sending and receiving systems are utilizing a multiple > >> interface bond. Consider a configuration in which a > >>

Re: [PATCH 1/2]: [NET_SCHED]: Make all rate based scheduler work with TSO.

2007-09-05 Thread Bill Fink
On Wed, 05 Sep 2007, Jesper Dangaard Brouer wrote: > On Tue, 2007-09-04 at 13:40 -0400, Bill Fink wrote: > > On Tue, 04 Sep 2007, Patrick McHardy wrote: > > > > > Bill Fink wrote: > > > > On Sat, 1 Sep 2007, Jesper Dangaard Brouer wrote: > > > &g

Re: [PATCH 1/2]: [NET_SCHED]: Make all rate based scheduler work with TSO.

2007-09-04 Thread Bill Fink
On Tue, 04 Sep 2007, Patrick McHardy wrote: > Bill Fink wrote: > > On Sat, 1 Sep 2007, Jesper Dangaard Brouer wrote: > > > >>On Sat, 1 Sep 2007, Patrick McHardy wrote: > >>> > >>>It still won't work properly with TSO (TBF for example already dr

Re: [PATCH 1/2]: [NET_SCHED]: Make all rate based scheduler work with TSO.

2007-09-03 Thread Bill Fink
On Sat, 1 Sep 2007, Jesper Dangaard Brouer wrote: > On Sat, 1 Sep 2007, Patrick McHardy wrote: > > > Jesper Dangaard Brouer wrote: > >> commit 6fdc0f061be94f5e297650961360fb7a9d1cc85d > >> Author: Jesper Dangaard Brouer <[EMAIL PROTECTED]> > >> Date: Thu Aug 30 17:53:42 2007 +0200 > >> > >> [N

Re: [PATCH 0/9 Rev3] Implement batching skb API and support in IPoIB

2007-08-26 Thread Bill Fink
On Fri, 24 Aug 2007, John Heffner wrote: > Bill Fink wrote: > > Here you can see there is a major difference in the TX CPU utilization > > (99 % with TSO disabled versus only 39 % with TSO enabled), although > > the TSO disabled case was able to squeeze out a little extra per

Re: [PATCH 0/9 Rev3] Implement batching skb API and support in IPoIB

2007-08-25 Thread Bill Fink
On Sat, 25 Aug 2007, Herbert Xu wrote: > On Fri, Aug 24, 2007 at 02:25:03PM -0700, David Miller wrote: > > > > My hunch is that even if in the non-TSO case the TX packets were all > > back to back in the cards TX ring, TSO still spits them out faster on > > the wire. > > If this is the case then

Re: [PATCH 0/9 Rev3] Implement batching skb API and support in IPoIB

2007-08-24 Thread Bill Fink
On Fri, 24 Aug 2007, jamal wrote: > On Thu, 2007-23-08 at 23:18 -0400, Bill Fink wrote: > > [..] > > Here you can see there is a major difference in the TX CPU utilization > > (99 % with TSO disabled versus only 39 % with TSO enabled), although > > the TSO disabled cas

Re: [PATCH 0/9 Rev3] Implement batching skb API and support in IPoIB

2007-08-23 Thread Bill Fink
On Thu, 23 Aug 2007, Rick Jones wrote: > jamal wrote: > > [TSO already passed - iirc, it has been > > demostranted to really not add much to throughput (cant improve much > > over closeness to wire speed) but improve CPU utilization]. > > In the one gig space sure, but in the 10 Gig space, TSO on

Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures

2007-08-15 Thread Bill Fink
On Wed, 15 Aug 2007, Satyam Sharma wrote: > (C) > $ cat tp3.c > int a; > > void func(void) > { > *(volatile int *)&a = 10; > *(volatile int *)&a = 20; > } > $ gcc -Os -S tp3.c > $ cat tp3.s > ... > movl$10, a > movl$20, a > ... I'm curious about one minor tangential point. W

Re: [PATCH] ixgbe: New driver for Pci-Express 10GbE 82598 support

2007-08-04 Thread Bill Fink
On Fri, 3 Aug 2007, Auke Kok wrote: > This patch adds support for the Intel 82598 PCI-Express 10GbE > chipset. Devices will be available on the market soon. > > This version of the driver is largely the same as the last release: > > * Driver uses a single RX and single TX queue, each using 1 MSI

Re: specifying scopid's for link-local IPv6 addrs

2007-07-24 Thread Bill Fink
On Tue, 24 Jul 2007, Sridhar Samudrala wrote: > On Tue, 2007-07-24 at 10:13 -0700, Rick Jones wrote: > > > Rick, > > > > > > I don't see any way around this. For example, on one of my test > > > systems, I have the following link local routes: > > > > > > chance% netstat -A inet6 -rn | grep fe8

Re: specifying scopid's for link-local IPv6 addrs

2007-07-24 Thread Bill Fink
On Mon, 23 Jul 2007, Rick Jones wrote: > Folks - > > People running netperf have reported that they have trouble with IPv6 under > Linux. Specifically, wereas the use of link-local IPv6 addresses "just > works" > in netperf under a number of "other OSes" they do not under Linux. I'm > ass-u

Re: Realtek RTL8111B serious performance issues

2007-07-18 Thread Bill Fink
Hi John, On Wed, 18 Jul 2007, [EMAIL PROTECTED] wrote: > On Wed, 18 Jul 2007, Francois Romieu wrote: > > > [EMAIL PROTECTED] <[EMAIL PROTECTED]> : > > [...] > >> Anyone have any suggestions for solving this problem? > > > > Try 2.6.23-rc1 when it is published or apply against 2.6.22 one of: > >

Re: [PATCH] TCP: remove initial_ssthresh from Cubic

2007-06-13 Thread Bill Fink
On Wed, 13 Jun 2007, David Miller wrote: > From: Stephen Hemminger <[EMAIL PROTECTED]> > Date: Wed, 13 Jun 2007 11:31:49 -0700 > > > Maybe it is time to remove BIC? > > I don't see any compelling reason, the same could be said > of the other experimental protocols we include in the tree. I agre

Re: 2.6.20.7 TCP cubic (and bic) initial slow start way too slow?

2007-06-12 Thread Bill Fink
On Tue, 12 Jun 2007, Stephen Hemminger wrote: > On Tue, 12 Jun 2007 15:12:58 -0700 (PDT) > David Miller <[EMAIL PROTECTED]> wrote: > > > From: Bill Fink <[EMAIL PROTECTED]> > > Date: Wed, 16 May 2007 02:44:09 -0400 > > > > > [EMAIL PROTECTED]

Re: 2.6.20.7 TCP cubic (and bic) initial slow start way too slow?

2007-05-15 Thread Bill Fink
etransmited 20936 fast retransmits 4503 retransmits in slow start 4 sack retransmits failed It then only took 2.14 seconds to transfer 1 GB of data. That's all for now. -Bill > Thanks, > Sangtae > > > On 5/12/0

Re: 2.6.20.7 TCP cubic (and bic) initial slow start way too slow?

2007-05-12 Thread Bill Fink
On Thu, 10 May 2007, Injong Rhee wrote: > Oops. I thought Bill was using 2.6.20 instead of 2.6.22 which should contain > our latest update. I am using 2.6.20.7. > Regarding slow start behavior, the latest version should not change though. > I think it would be ok to change the slow start of bi

Re: 2.6.20.7 TCP cubic (and bic) initial slow start way too slow?

2007-05-10 Thread Bill Fink
9052 Mbps > 844.3655 MB / 1.00 sec = 7082.6544 Mbps > 842.2671 MB / 1.00 sec = 7065.7169 Mbps > 839.9204 MB / 1.00 sec = 7045.8335 Mbps > 840.1780 MB / 1.00 sec = 7048.3114 Mbps > 834.1475 MB / 1.00 sec = 6997.4270 Mbps > 835.5972 MB / 1.00 sec = 7009.31

Re: 2.6.20.7 TCP cubic (and bic) initial slow start way too slow?

2007-05-08 Thread Bill Fink
6.2622 Mbps 90 %TX 46 %RX [EMAIL PROTECTED] ~]# netstat -s | grep -i retrans 0 segments retransmited -Thanks a lot! -Bill > Regards, > Sangtae > > > On 5/6/07, Bill Fink <[EMAIL PROTECTED]> wrote:

2.6.20.7 TCP cubic (and bic) initial slow start way too slow?

2007-05-06 Thread Bill Fink
The initial TCP slow start on 2.6.20.7 cubic (and to a lesser extent bic) seems to be way too slow. With an ~80 ms RTT, this is what cubic delivers (thirty second test with one second interval reporting and specifying a socket buffer size of 60 MB): [EMAIL PROTECTED] ~]# netstat -s | grep -i retr

Re: [PATCH 5/5 2.6.21] L2TP: Add PPPoL2TP in-kernel documentation

2007-04-30 Thread Bill Fink
On Mon, 30 Apr 2007, James Chapman wrote: > Signed-off-by: James Chapman <[EMAIL PROTECTED]> > > Index: linux-2.6.21/Documentation/networking/l2tp.txt > === > --- /dev/null > +++ linux-2.6.21/Documentation/networking/l2tp.txt > @@ -0

Re: [ofa-general] Re: IPoIB forwarding

2007-04-30 Thread Bill Fink
On Mon, 30 Apr 2007, Rick Jones wrote: > > What version of the myri10ge driver is this? With the 1.2.0 version > > that comes with the 2.6.20.7 kernel, there is no myri10ge_lro module > > parameter. > > > > [EMAIL PROTECTED] ~]# modinfo myri10ge | grep -i lro > > [EMAIL PROTECTED] ~]# > > > >

Re: [ofa-general] Re: IPoIB forwarding

2007-04-27 Thread Bill Fink
On Fri, 27 Apr 2007, Rick Jones wrote: > Bryan Lawver wrote: > > I had so much debugging turned on that it was not the "slowing of the > > traffic" but the "non-coelescencing" that was the remedy. The NIC is a > > MyriCom NIC and these are easy options to set. > > As chance would have it, I've

netdev file size restrictions??? Was: Re: [PATCH 04/14] AF_RXRPC: Provide secure RxRPC sockets for ...

2007-04-27 Thread Bill Fink
On Thu, 26 Apr 2007 20:54:36 +0100, David Howells wrote: > Provide AF_RXRPC sockets that can be used to talk to AFS servers, or serve > answers to AFS clients. KerberosIV security is fully supported. The patches > and some example test programs can be found in: > > http://people.redhat.co

Re: Unexcepted latency (order of 100-200 ms) with TCP (packet receive)

2007-04-27 Thread Bill Fink
On Thu, 26 Apr 2007, Ilpo Järvinen wrote: > On Thu, 26 Apr 2007, Chuck Ebbert wrote: > > > Ilpo Järvinen wrote: > > > ...I'm unsure how to continue the investigation from this point onward > > > and asking for ideas/suggestions or how to rule out more possibilities... > > > Or is there some kno

Re: ppp and routing table rules.

2007-03-02 Thread Bill Fink
On Thu, 01 Mar 2007, Ben Greear wrote: > Ben Greear wrote: > > I am sending udp packets through ppp400, and I see them appear on ppp401 > as expected. > > The thing that is bothering me is that all I see on rddVR4 (172.1.2.1) > is arps for 172.1.2.2, but the 'tell' IP is that of the > originat

Re: why do we mangle checksums for v6 ICMP?

2006-11-11 Thread Bill Fink
On Thu, 09 Nov 2006, David Miller wrote: > From: Brian Haley <[EMAIL PROTECTED]> > Date: Thu, 09 Nov 2006 12:32:18 -0500 > > > Al Viro wrote: > > > AFAICS, the rules are: > > > > > > (1) checksum is 16-bit one's complement of the one's complement sum of > > > relevant 16bit words. > > > > > >

Re: [PATCH 9/14] [TIPC] Name publication events now delivered in chronological order

2006-10-13 Thread Bill Fink
FYI, At least here, I received two copies of patch 9/14 and no copy of patch 10/14. -Bill On Fri, 13 Oct 2006 13:37:50 +0200, Per Liden wrote: > From: Allan Stephens <[EMAIL PROTECTED]> > > This patch tivially re-orders the entries in TIPC's li

Re: [PATCH 01/02] net/ipv6: seperate sit driver to extra module

2006-10-06 Thread Bill Fink
On Fri, 6 Oct 2006 17:15:56 +0200, Joerg Roedel wrote: > +config IPV6_SIT > + tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)" > + depends on IPV6 > + default y > + ---help--- > + Tunneling means encapsulating data of one protocol type within > + another protocol and s

Re: [PATCH] ethtool v4: add autoneg advertise feature

2006-08-25 Thread Bill Fink
On Fri, 25 Aug 2006, Jeff Kirsher wrote: > On 8/25/06, Bill Fink <[EMAIL PROTECTED]> wrote: > > > > I agree. Something like: > > > > ethtool -s ethx auto on advertise mode1+mode2+...+moden > > > > For example: > > > > ethto

Re: [PATCH] ethtool v4: add autoneg advertise feature

2006-08-25 Thread Bill Fink
On Thu, 24 Aug 2006, Michael Chan wrote: > Jeff Kirsher wrote: > > > The old way of setting autonegotiation was using the > > following command: > > ethtool -s ethx speed 100 duplex full auto on > > now the command would be > > ethtool -s ethx auto on advertise 0x08 > > both commands would resul

Re: [PATCH 03/18] d80211: pointers as extended booleans

2006-08-21 Thread Bill Fink
On Mon, 21 Aug 2006, Johannes Berg wrote: > Please review carefully, the task was so boring that I might have made > stupid mistakes. > --- > This huge patch changes d80211 to treat pointers as "extended booleans", > using "if (!ptr)" and "if (ptr)" instead of comparisons with NULL. > > Signed-of

Re: [PATCH 1/1] network memory allocator.

2006-08-15 Thread Bill Fink
On Tue, 15 Aug 2006, Evgeniy Polyakov wrote: > On Tue, Aug 15, 2006 at 03:49:28PM +0200, Peter Zijlstra ([EMAIL PROTECTED]) > wrote: > > > It could if you can provide adequate detection of memory pressure and > > fallback to a degraded mode within the same allocator/stack and can > > guarantee l

Re: Network performance degradation from 2.6.11.12 to 2.6.16.20

2006-06-25 Thread Bill Fink
On Sun, 25 Jun 2006, Harry Edmon wrote: > I understand the saying "beggars can't be choosers", but I have heard nothing > on > this issue since June 19th. Does anyone have any ideas on what is going on? > Is > there more information I can collect that would help diagnose this problem? > An

Re: reminder, 2.6.18 window...

2006-05-25 Thread Bill Fink
On Thu, 25 May 2006, Brent Cook wrote: > On Thursday 25 May 2006 02:23, Bill Fink wrote: > > On Wed, 24 May 2006, Jeff Garzik wrote: > > > Brent Cook wrote: > > > > Note that this is just clearing the hardware statistics on the > > > > interface, and woul

Re: reminder, 2.6.18 window...

2006-05-25 Thread Bill Fink
On Wed, 24 May 2006, Phil Dibowitz wrote: > Right. I think the point here is that it does _NOT_ inherently break > things. If you don't like the behavior, don't run "ethtool -z eth0", > it's that simple. > > A co-worker suggested today, that maybe it'd appease people if the final > ethtool patch

Re: reminder, 2.6.18 window...

2006-05-25 Thread Bill Fink
On Wed, 24 May 2006, Jeff Garzik wrote: > Brent Cook wrote: > > Note that this is just clearing the hardware statistics on the interface, > > and > > would not require any kind of atomic_increment addition for interfaces that > > support that. It would be kind-of awkward to implement this on dr

Re: [Bugme-new] [Bug 6309] New: SO_RCVBUF doubled on set not halved on get

2006-03-31 Thread Bill Fink
On Thu, 30 Mar 2006, David S. Miller wrote: > From: Bill Fink <[EMAIL PROTECTED]> > Date: Fri, 31 Mar 2006 01:58:35 -0500 > > > I don't think it makes perfect sense. If there's overhead, fine go > > ahead and add the overhead, but do it under the covers an

Re: [Bugme-new] [Bug 6309] New: SO_RCVBUF doubled on set not halved on get

2006-03-30 Thread Bill Fink
On Thu, 30 Mar 2006, Mark Butler wrote: > David S. Miller wrote: > > >This has been this way for centuries and it's the correct behavior. > > > >We double it on the way in to account for "struct sk_buff" etc. > >overhead, applications assume that the SO_RCVBUF setting they make > >will allow that

Re: tg3 breakage this morning

2006-03-24 Thread Bill Fink
On Fri, 24 Mar 2006, walt wrote: > Michael Chan wrote: > > Walt wrote: > > > >> Nope, it was the second one: Skip phy power down... > > > It doesn't make sense. This code should have no effect on your > > 5702. With or without this patch, the 5702 will be powered down > > the same with tg3_writ

Re: tg3 breakage this morning

2006-03-23 Thread Bill Fink
On Thu, 23 Mar 2006, walt wrote: > Hi, > I emailed Dave Miller, who re-directed me to this mail list. > > I update from Linus's git repository every morning, and today > I got this error: > > tg3.c:v3.53 (Mar 22, 2006) > PCI: Enabling device :00:09.0 (0014 -> 0016) > ACPI: PCI Interrupt

Re: 2.6.12.6 to 2.6.14.3 Major 10-GigE TCP Network Performance Degradation

2006-01-04 Thread Bill Fink
On Tue, 3 Jan 2006, Stephen Hemminger wrote: > On Wed, 28 Dec 2005 22:35:50 -0500 > Bill Fink <[EMAIL PROTECTED]> wrote: > > > Would the following patch be at all useful for the 2.6.14.x stable > > series, since enabling TSO there causes a 40% or greater TCP performanc

Re: 2.6.12.6 to 2.6.14.3 Major 10-GigE TCP Network Performance Degradation

2005-12-28 Thread Bill Fink
On Thu, 15 Dec 2005, Stephen Hemminger wrote: > On Fri, 16 Dec 2005 03:26:31 +0100 > Andi Kleen <[EMAIL PROTECTED]> wrote: > > > On Thu, Dec 15, 2005 at 08:35:32PM -0500, Bill Fink wrote: > > > On Fri, 16 Dec 2005, Andi Kleen wrote: > > > > > > &

Re: Bad ARP Behavior???

2005-12-16 Thread Bill Fink
On Fri, 16 Dec 2005, I wrote: > Is it expected behavior that ARP replies would be generated for interfaces > on a different network than the IP address in the ARP request (note I > don't have Proxy ARP enabled), or is this a bug? To me it would seem > to be a bug. Answering my own question for t

Bad ARP Behavior???

2005-12-16 Thread Bill Fink
Sometimes when doing my 10-GigE testing, I would get results like the following: chance% nuttcp -w2m 192.168.88.8 1184.3614 MB / 10.04 sec = 989.8235 Mbps 12 %TX 9 %RX This seemed to indicate it was using one of the GigE interfaces rather than the 10-GigE interface. Both chance and chance4 ha

Re: 2.6.12.6 to 2.6.14.3 Major 10-GigE TCP Network Performance Degradation

2005-12-15 Thread Bill Fink
On Thu, 15 Dec 2005, David S. Miller wrote: > From: Bill Fink <[EMAIL PROTECTED]> > Date: Thu, 15 Dec 2005 20:35:32 -0500 > > > chance% nuttcp -w2m 192.168.88.8 > > 6299.0625 MB / 10.01 sec = 5278.6065 Mbps 100 %TX 74 %RX > > chance% nuttcp -r -w2m 192.168.88

Re: 2.6.12.6 to 2.6.14.3 Major 10-GigE TCP Network Performance Degradation

2005-12-15 Thread Bill Fink
On Fri, 16 Dec 2005, Andi Kleen wrote: > > It appears that it is getting CPU starved for some reason (note the > > 43%/40% transmitter CPU usage versus the 99%/99% CPU usage for the > > 2.6.12.6 case). > > What happens when you turn off tso in ethtool? Thanks!!! That did the trick. [EMAIL PROT

Re: 2.6.12.6 to 2.6.14.3 Major 10-GigE TCP Network Performance Degradation

2005-12-15 Thread Bill Fink
Oops. I forgot to attach my 2.6.12.6 kernel config. -Bill config-2.6.12.bz2 Description: BZip2 compressed data

2.6.12.6 to 2.6.14.3 Major 10-GigE TCP Network Performance Degradation

2005-12-15 Thread Bill Fink
Hi, We use dual 3.06 GHz Xeon PC servers, with 1 GB memory, 133-MHz/64-bit PCI-X bus, and Intel PRO/10GbE 10-GigE NIC, as 10-GigE network performance measurement and troubleshooting systems. With the 2.6.12.6 kernel we get consistently excellent network performance, both TCP and UDP. Here's a sa