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List:       freebsd-performance
Subject:    Re: Does ULE restrict available RAM?
From:       Denis Melnikov <dbmelnikov () gmail ! com>
Date:       2010-08-20 7:45:44
Message-ID: AANLkTin+zJOW44tYdy5-Nm=B0Wqim9pHf4fKDEoSxch6 () mail ! gmail ! com
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It was a DIMM failure, just a fatal coincidence.
Thank you!

Denis

2010/8/19, Josh Paetzel <jpaetzel@freebsd.org>:
> On Thursday 19 August 2010 04:03:40 Denis Melnikov wrote:
>> Hi!
>> 7.0-RELEASE (amd64)
>> RAM 33 GB (8*4096+2*512)
>> 2 quad-core Xeons
>>
>> The server ran GENERIC kernel with 4BSD scheduler earlier. When loaded
>> with ULE scheduler it has missed 8GB.
>>
>> dmesg:
>> usable memory = 26829983744 (25587 MB)
>> avail memory  = 25999904768 (24795 MB)
>>
>> # dmidecode -t 17 | grep Size
>>         Size: 512 MB
>>         Size: 4096 MB
>>         Size: No Module Installed
>>         Size: 512 MB
>>         Size: 4096 MB
>>         Size: No Module Installed
>>         Size: 4096 MB
>>         Size: 4096 MB
>>         Size: No Module Installed
>>         Size: 4096 MB
>>         Size: 4096 MB
>>         Size: No Module Installed
>>
>> It looks like BIOS-level problem, but... maybe ULE restricts RAM?
>>
>> Hopefully,
>> Denis
>
> How much RAM does the BIOS report present?
>
> --
> Thanks,
>
> Josh Paetzel
> FreeBSD -- The power to serve
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