Re: [389-users] Performance tuning - where to begin?

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W dniu 04.02.2011 21:29, Andrew Kerr pisze:
> Since the machine isn't even opening up a socket, it makes me think you are hitting either a connection limit or related file limit.
>
> Have you set things such as fs.file-max, tcp keepalive, and file limits (check ulimit) per the docs?

Yes, I've set ulimit and fd to 4096. max open fd's about 1500.

> -----Original Message-----
> From: 389-users-bounces@xxxxxxxxxxxxxxxxxxxxxxx [mailto:389-users-bounces@xxxxxxxxxxxxxxxxxxxxxxx] On Behalf Of David Boreham
> Sent: Thursday, February 03, 2011 11:42 AM
> To: 389-users@xxxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [389-users] Performance tuning - where to begin?
>
> On 2/3/2011 9:29 AM, Daniel Fenert wrote:
>> There are plenty of configuration options, where should I look first?
>>
> My first guess would be that you've saturated one core. The server
> probably still processes new connections in a single thread (it did on
> Unix platforms last time I looked at the code at any rate). So although
> the CPU load overall is not 100%, once you max out one core, it won't be
> able to process new connections any faster. That said, the rate you are
> achieving seems quite low for a modern machine. It would be worthwhile
> looking to see if it is doing a reverse DNS lookup on the client IP address.
> After that, try using pstack to see what the accept thread is spending
> its time on.
>
>
>
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-- 
Daniel Fenert

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