Re: W3 PROXY and w3 proxy using a lot of memory

From: Bill Peng [MSFT] (v-bpeng_at_online.microsoft.com)
Date: 03/02/05 

Date: Wed, 02 Mar 2005 10:29:43 GMT

Hi Theo,

Thank you for posting back.

Actually, ISA's Web Proxy service is designed to cache web objects to
accelerate the web site access. However, this may also decrease the server
performance when it takes half of the RAM (by default) to store the web
objects.

Since there're many components installed on the SBS server, a best practice
is to set the memory percentage to 10% to 20%.

If you have further questions, please feel free to let me know.

Bill Peng
MCSE 2000, MCDBA
Microsoft Online Partner Support

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--------------------
>From: "Theo" <theo@please-reply-to-group.com>
>Newsgroups: microsoft.public.windows.server.sbs
>Subject: Re: W3 PROXY and w3 proxy using a lot of memory
>Date: Tue, 1 Mar 2005 16:09:15 -0000
>Lines: 96
>Message-ID: <d02713$ndc$1$8300dec7@news.demon.co.uk>
>References: <cvve1h$m0t$1$830fa795@news.demon.co.uk>
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16:59:15 GMT)
>X-Complaints-To: abuse@demon.net
>NNTP-Posting-Date: Tue, 1 Mar 2005 16:59:15 +0000 (UTC)
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>Xref: TK2MSFTNGXA02.phx.gbl microsoft.public.windows.server.sbs:150521
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>
>Hi Bill
>It looks like the default is 50% of the physical memory, wow! does it
really
>need that much and if I reduce it how much is sensible? I think that other
>services make use of it don't they?
>We have the cache set to 100MB (on the disk) but I had not gone near the
>advanced settings. Any advice geatly appreciated
>Theo
>"Bill Peng [MSFT]" <v-bpeng@online.microsoft.com> wrote in message
>news:IjXweajHFHA.400@TK2MSFTNGXA02.phx.gbl...
>> Hi Chris,
>>
>> Thank you for posting here!
>>
>> I understand the problem is w3proxy.exe took high memory usage. If I
>> misunderstood your concern, please don't hesitate to let me know.
>>
>> By default the Web Proxy will take 50% of physical memory as the web
>> cache.
>> You can lower the percentage (such as 20%). Please refer to the following
>> KB:
>>
>> Percentage of Free Memory to Use for Caching" Means Percentage of
Physical
>> Memory
>> http://support.microsoft.com/?id=322991
>>
>> If the problem persists, I think it should be a performance issue. And
I'd
>> like to provide the following info for your reference:
>>
>> Info 1.
>>
>> Such issue may caused by anti-virus real-time protection (such as Norton
>> Anti-Virus). If you would, please try:
>>
>> 1. Make C:\Program Files\Microsoft ISA Server folder as an exclusive
>> folder
>> for the Real-time protection.
>> 2. Disable AV real-time protection.
>> 3. Temporary uninstall Anti-virus software.
>>
>> Info 2.
>>
>> I noticed that if you've installed SurfControl, it will cause such issue.
>> To solve the problem, I recommend you to contact SurfControl and obtain a
>> newer version.
>>
>> I hope the above info helps and I look forward to your update.
>>
>> Bill Peng
>> MCSE 2000, MCDBA
>> Microsoft Online Partner Support
>>
>> Get Secure! - www.microsoft.com/security
>> =====================================================
>> When responding to posts, please "Reply to Group" via your newsreader so
>> that others may learn and benefit from your issue.
>> =====================================================
>> This posting is provided "AS IS" with no warranties, and confers no
>> rights.
>>
>> --------------------
>>>From: "Theo" <theo@please-reply-to-group.com>
>>>Newsgroups: microsoft.public.windows.server.sbs
>>>Subject: W3 PROXY and w3 proxy using a lot of memory
>>>Date: Mon, 28 Feb 2005 15:40:32 -0000
>>>Lines: 7
>>>Message-ID: <cvve1h$m0t$1$830fa795@news.demon.co.uk>
>>>NNTP-Posting-Host: mitw2.demon.co.uk
>>>X-Trace: news.demon.co.uk 1109605234 22557 80.177.98.243 (28 Feb 2005
>> 15:40:34 GMT)
>>>X-Complaints-To: abuse@demon.net
>>>NNTP-Posting-Date: Mon, 28 Feb 2005 15:40:34 +0000 (UTC)
>>>X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527
>>>X-Priority: 3
>>>X-RFC2646: Format=Flowed; Original
>>>X-Newsreader: Microsoft Outlook Express 6.00.2900.2527
>>>X-MSMail-Priority: Normal
>>>Path:
>>
TK2MSFTNGXA02.phx.gbl!TK2MSFTNGXA01.phx.gbl!TK2MSFTNGP08.phx.gbl!newsfeed00.
>>
sul.t-online.de!t-online.de!tiscali!newsfeed1.ip.tiscali.net!border2.nntp.am
>>
s.giganews.com!nntp.giganews.com!pe2.news.blueyonder.co.uk!blueyonder!peer-u
>> k.news.demon.net!kibo.news.demon.net!news.demon.co.uk!demon!not-for-mail
>>>Xref: TK2MSFTNGXA02.phx.gbl microsoft.public.windows.server.sbs:150225
>>>X-Tomcat-NG: microsoft.public.windows.server.sbs
>>>
>>>The Server Performamnce report is showing W3PROXY - 4904 using 692 MB of
>>>memory and w3proxy - 2644 using 508 MB. Is this to be expected on a 30
>> user
>>>system with 4 GB of memory?
>>>Thanks
>>>Theo
>>>
>>>
>>>
>>
>
>
>

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