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From Antonio Vidal Ferrer <antonio.vi...@globalia-sistemas.com>
Subject Fwd: Re: [users@httpd] Apache 2.2 slow transfers on Windows Server 2003
Date Fri, 14 May 2010 11:19:30 GMT
 Have you verified that you don't have the dns resolution turned on?

Check config files for HostnameLookups, it should be off (it is by
default but better to check)

Hope you find the solution soon

Best,

Antonio Vidal

El 13/05/2010 19:41, Cameron Altenhof-Long escribió:
> We're having a performance problem with Apache running on Windows 
> Server 2003 and have not been able to resolve it using any of the 
> previously mentioned suggestions.
>
> The server runs Windows Server 2003 SP2 and Apache 2.2.13. We have 
> also tested Apache 2.2.15 on Windows Server 2008 through an Amazon 
> instance with similar results.
>
> Our throughput tests are done with either 10MB or 100MB files using 
> 'curl' running on an OSX server. On the same LAN as the Windows server 
> we can achieve file transfer rates > 40MB/s, from either IIS or Apache.
>
> If we adjust the routing to include a cisco firewall and router in our 
> datacenter the transfer rates drop to ~7800KB/s for Apache and 
> ~9200KB/s for IIS. As a side note, transfers from Apache on an OS X 
> server are closer to ~9.8MB/s which is about as fast as we can go 
> through the 100Mbit firewall.
>
> Our biggest problems occur outside of the data center where we see 
> transfer rate variances of ~500KB/s from IIS versus ~185KB/s from Apache.
>
> Adding 'EnableSendfile off' to the Apache config actually slows things 
> down for us. The 'EnableMMAP off' and 'Win32DisableAcceptEx' options 
> don't seem to matter for us.
>
> Our datacenter support group keeps pointing to IIS performance as 
> confirmation that the network is stable.
>
> We really, really don't want to switch to IIS and it's not feasible 
> for us to swap out several Windows servers for Unix servers at this time.
>
> I'm open to any suggestions on things to try to see if we can bring 
> Apache perform up to something closer to what we are seeing with IIS.
>
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> .
>
>   


-- 
*******************************************************************************************
Antonio Vidal Ferrer Globalia Corporación Empresarial Senior System
Manager Carretera Arenal Llucmajor km 21.5 Globalia Sistemas y
Comunicaciones S.L. www.globalia-corp.com
antonio.vidal@globalia-sistemas.com 07620 Llucmajor - Islas Baleares –
España T: (0034) 971-178464 T: (0034) 971-178100 M: (0034) 647-995481
*******************************************************************************************


-- 
*******************************************************************************************
Antonio Vidal Ferrer Globalia Corporación Empresarial Senior System
Manager Carretera Arenal Llucmajor km 21.5 Globalia Sistemas y
Comunicaciones S.L. www.globalia-corp.com
antonio.vidal@globalia-sistemas.com 07620 Llucmajor - Islas Baleares –
España T: (0034) 971-178464 T: (0034) 971-178100 M: (0034) 647-995481
*******************************************************************************************


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