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Perfomance problem on MIPS

DISCUSSION art 2 participants 4 messages Jun 5, 2006 MIPS

lore
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#0 lore raw

Hello all!
I work with processor: MIPS 4KC.
I check network performance without iptables & conntrac enabled and it has near 80Mbit/s.
When I enable (without adding rules) network performance was near 40Mbit/s.
While testing ksoftirqd is get near 50% of cpu. And (it is so strange) top eats the same! However cpu has 100% load and perfomance is real bad.
Has anybody same problem?

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Best regards,
 art                          mailto:[email protected]
author
#1 lore raw

Hello art,

Monday, June 05, 2006, 2:43:47 PM, you wrote:

a> Hello all!

a>       I work with processor: MIPS 4KC.
a>       I check network performance without iptables & conntrac enabled
a>       and it has near 80Mbit/s.
a>       When I enable (without adding rules) network performance was
a>       near 40Mbit/s.
a>       While testing ksoftirqd is get near 50% of cpu. And (it is so
a>       strange) top eats the same! However cpu has 100% load and
a>       perfomance is real bad.
a>       Has anybody same problem?

I mistype: with iptables&conntrack perfomance only 30Mbit/s

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Best regards,
 art                            mailto:[email protected]
author
#2 lore raw

Kernel 2.6.16 from linux-mips.org
a>> Hello all!

a>>       I work with processor: MIPS 4KC.
a>>       I check network performance without iptables & conntrac enabled
a>>       and it has near 80Mbit/s.
a>>       When I enable (without adding rules) network performance was
a>>       near 40Mbit/s.
a>>       While testing ksoftirqd is get near 50% of cpu. And (it is so
a>>       strange) top eats the same! However cpu has 100% load and
a>>       perfomance is real bad.
a>>       Has anybody same problem?
Signature · 2 lines
Best regards,
 art                            mailto:[email protected]
#3 lore raw
In reply to art
Quoted 10 lines · art

Hello all!
I work with processor: MIPS 4KC.
I check network performance without iptables & conntrac enabled and it has near 80Mbit/s.
When I enable (without adding rules) network performance was near 40Mbit/s.
While testing ksoftirqd is get near 50% of cpu. And (it is so strange) top eats the same! However cpu has 100% load and perfomance is real bad.
Has anybody same problem?

Just loading the connection tracking module will pull networking performance into a deep hole, no surprise there. All your numbers are on the low side though. What clock rate is your CPU running?

Ralf