linux-kernel - Re: What is the limit size of tmpfs /dev/shm ?

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Date:	Wed, 06 Feb 2008 16:06:28 +0100
From:	"rzryyvzy" <rzryyvzy@...shmail.net>
To:	linux-kernel@...r.kernel.org
Subject: Re: What is the limit size of tmpfs /dev/shm ?

Tomasz Chmielewski schrieb:
>> Hello Kernel Users,
>>
>> is there a size limit for tmpfs for the /dev/shm filesystem?
>> Normally its default size is set to 2 GB. Is it possible to create a 
>> 2 TB (Terrabyte) filesystem with tmpfs?
>> Or is there a maximum size defined in the linux kernel?
>
> Depends on your arch.
I have a 64 Bits architecture (amd64/x86_64).

> If you're 64 bit, you need to have really loads of storage and/or RAM 
> to accumulate 16EB:
>
> # mount -t tmpfs -o size=171798691839G tmpfs /mnt/2
> # df -h
> (...)
> tmpfs                  16E     0   16E   0% /mnt/2
Nice, I will try this out.
I have not the money for 16E of memory of RAM! :-) lol
Already to provide 1 TB it would cost at least for the memory about 20 
000 EUR + the server costs which support this.

-- 
Best regards
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