) congestion
control allows faster start and faster recovery.
People like compliance to standards, even if it decreases performance.
:) Take care.
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...
http://curl
interesting. Are there any details of your benchmarking available,
namely, how it was done?
Have you some comparison profiling data (oprofile) to figure out where
the advantages are coming from?
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Robert Iakobashvili,
coroberti %x40 gmail %x2e com
On 7/4/07, Eric Dumazet [EMAIL PROTECTED] wrote:
On Wed, 4 Jul 2007 11:40:48 +0200
Robert Iakobashvili [EMAIL PROTECTED] wrote:
On 7/4/07, Evgeniy Polyakov [EMAIL PROTECTED] wrote:
On Wed, Jul 04, 2007 at 09:50:31AM +0200, Robert Iakobashvili ([EMAIL
PROTECTED]) wrote:
If I am correct
.
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...
http://curl-loader.sourceforge.net
A web testing and traffic generation tool.
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On 7/4/07, Evgeniy Polyakov [EMAIL PROTECTED] wrote:
On Wed, Jul 04, 2007 at 09:50:31AM +0200, Robert Iakobashvili ([EMAIL
PROTECTED]) wrote:
If I am correct, a TCP server can make up to
64K accepts for a port at a single IP-address.
No, it is essentially unlimited - linux uses local/remote
.
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...
http://curl-loader.sourceforge.net
A web testing and traffic generation tool.
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Hi
On 6/25/07, Jan Engelhardt [EMAIL PROTECTED] wrote:
On Jun 25 2007 11:47, Robert Iakobashvili wrote:
I am getting after initial successes some errors:
rtnl_talk(): RTNETLINK answers: Cannot allocate memory
and
#ip addr | wc-l is 8194.
I'd be surprised if it was 4096 on x86 and 8192
On 6/25/07, Jan Engelhardt [EMAIL PROTECTED] wrote:
On Jun 25 2007 12:41, Robert Iakobashvili wrote:
I am getting after initial successes some errors:
rtnl_talk(): RTNETLINK answers: Cannot allocate memory
and
#ip addr | wc-l is 8194.
I'd be surprised if it was 4096 on x86 and 8192
IP addresses than 4096. What do I need to change in Linux
kernel ( and then recompile ) to be able to add more IP addresses than
4K addresses per system? ..
How are you doing this?
Could it be some IPv6 issue like scope?
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of secondary
IPv4 addresses. It consumes some memory, however.
We have also added thousands of IPv6. I will try to test, if there is any
limit for doing it.
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Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...
http://curl
,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...
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A web testing and traffic generation tool.
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kernel below 2.6.19 (for example: 2.6.12 or 2.6.15) works
fine.
Including 2.6.21?
Which browser/s have you tried?
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...
http://curl-loader.sourceforge.net
A web testing and traffic
--
2.6.19.7 30724096 6144
2.6.19.7-patched45696 60928 91392
2.6.20.7 30724096 6144
2.6.20.7-patched45696 60928 91392
The patch was applied smothly just with line offsets.
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Robert Iakobashvili
Yes, it fixes.
Thanks, I will submit it to -stable branch.
David and John,
Thanks for your caring and attention.
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coroberti %x40 gmail %x2e com
...
Navigare necesse est, vivere non est necesse
Robert Iakobashvili wrote:
Vanilla 2.6.18.3 works for me perfectly, whereas 2.6.19.5 and
2.6.20.6 do not.
Looking into the tcp /proc entries of 2.6.18.3 versus 2.6.19.5
tcp_rmem and tcp_wmem are the same, whereas tcp_mem are
much different:
kernel tcp_mem
On 4/13/07, David Miller [EMAIL PROTECTED] wrote:
From: Robert Iakobashvili [EMAIL PROTECTED]
Date: Thu, 12 Apr 2007 23:11:14 +0200
It works good with 2.6.11.8 and debian 2.6.18.3-i686 image.
At the same Intel Pentium-4 PC with the same about kernel configuration
(make oldconfig using
On 4/13/07, David Miller [EMAIL PROTECTED] wrote:
From: Robert Iakobashvili [EMAIL PROTECTED]
Date: Thu, 12 Apr 2007 23:11:14 +0200
It works good with 2.6.11.8 and debian 2.6.18.3-i686 image.
At the same Intel Pentium-4 PC with the same about kernel configuration
(make oldconfig using
Hi John,
On 4/15/07, John Heffner [EMAIL PROTECTED] wrote:
Robert Iakobashvili wrote:
Vanilla 2.6.18.3 works for me perfectly, whereas 2.6.19.5 and
2.6.20.6 do not.
Looking into the tcp /proc entries of 2.6.18.3 versus 2.6.19.5
tcp_rmem and tcp_wmem are the same, whereas tcp_mem are
much
the loopback (lo) - same picture.
Don't fill yourself alone, it may be the same problem, that
we encounter.
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...
Navigare necesse est, vivere non est necesse
bottom.
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Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...
Navigare necesse est, vivere non est necesse
...
http://sourceforge.net/projects/curl-loader
(Thread Priority Register) of the
APIC. It's just... not there in Linux (other OSes do use this).
Have you any specific pointers for doing it (beyond Internet search)?
Your input would be very much appreciated.
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Robert Iakobashvili,
coroberti %x40 gmail %x2e com
day we
can wish to
add a 10Gbps network card and 16 cores/CPUs, but it will not be
helpful to scale.
Probably, some cards have separated Rx and Tx interrupts. Still,
scaling is an issue.
I will look into PCI-E option, thanks Jamal.
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Robert Iakobashvili,
coroberti %x40 gmail %x2e
Hi Arjan,
On 12/25/06, Arjan van de Ven [EMAIL PROTECTED] wrote:
On Sun, 2006-12-24 at 11:34 +0200, Robert Iakobashvili wrote:
Sorry for repeating, now in text mode.
Is there a way to balance IRQs from a network card among Intel CPU cores
with Intel 5000 series chipset?
We tried
Arjan,
On 12/25/06, Arjan van de Ven [EMAIL PROTECTED] wrote:
On Mon, 2006-12-25 at 13:26 +0200, Robert Iakobashvili wrote:
Am I understanding you correctly that you want to spread the load of the
networking IRQ roughly equally over 2 cpus (or cores or ..)?
Yes, 4 cores.
If so
version 2
Capabilities: [80] #0d []
Capabilities: [100] Advanced Error Reporting
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coroberti %x40 gmail %x2e com
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Navigare necesse est, vivere non est necesse
something.
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--
Robert Iakobashvili, coroberti at gmail dot com
Navigare necesse est, vivere non est necesse.
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as well as
encourage moving aio-applications from windows to linux.
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Navigare necesse est, vivere non est necesse
.
Is this behavior of bind () for packet socket done deliberately, or
better to correct it so that bind will fail and return errno, e.g. ENODEV?
Thanks.
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Navigare necesse est
* aio_error
* aio_return
* aio_cancel
where aio_suspend is very important.
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--
Robert Iakobashvili, coroberti at gmail dot com
Navigare necesse est, vivere non est necesse
communication)
regarding future support of linux kernel to so-called Proactor design
pattern, where true asynch support from kernel has real advantages.
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---
Robert Iakobashvili, coroberti at gmail dot com
NAVIGARE
,
---
Robert Iakobashvili, coroberti at gmail dot com
NAVIGARE NECESSE EST
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, using
loopback interface.
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NAVIGARE NECESSE EST
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a multicast.
Sniffing kernel packets via such netlink sockets actually may be extended for
the unix-domain traffic as well.
What do you think?
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Robert Iakobashvili, coroberti at gmail dot com
NAVIGARE
-domain
traffic as well, or there are other ways to sniff such packets?
Security people will cry, but sometimes we need good troubleshooting
means in userland.
Sincerely,
---
Robert Iakobashvili, coroberti at gmail dot com
via a Cisco switch. Y may wish to monitor your switch ports statistics
to understand, what is IN and what is OUT.
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Robert Iakobashvili - NAVIGARE NECESSE EST
coroberti at gmail dot com
On 11/23/05, Robert Iakobashvili [EMAIL PROTECTED] wrote:
On 11/23/05, Yu Zhiguo [EMAIL PROTECTED] wrote:
Please refer to the function netlink_broadcast(),
int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
u32 group, int allocation)
I think if allocation=GFP_ATOMIC
Are there netlink socket
netlink_unicast () and netlink_broadcast () interrupt safe?
If not, where is the problem and the
direction to make them safe?
If it is not easy, what could be a workaroud?
Thank you in advance.
Robert
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