Re: [squid-users] Re: cache_dir aufs grows larger than config'ed

On Mon, Oct 4, 2010 at 2:56 AM, Matus UHLAR - fantomas
<uhlar_at_fantomas.sk> wrote:
> On 29.09.10 17:42, Rich Rauenzahn wrote:
>> This code strikes me as incorrect... Basically for files > 2GB, squid
>> does the accounting wrong!
>
> It's apparently just a filesystem overhead, which varies between filesystems
> but may eat some % of disk space.

No, it's a bug. File system overhead doesn't account for taking 2-3
times more space than what squid says it is using. See
http://bugs.squid-cache.org/show_bug.cgi?id=3068

>> Note that sizeof(int) is 4 in both 32bit and 64bit compilation models.
>>  I believe that blks * fs.blksize overflows 32bit before it is right
>> shifted by 10 bits.
>
> if you want to use filesizes over 2GB on 32bit system, you must make your
> program to be 64-bit capable, and compile it that way.
>
> the same applies about using 64bit numbers.

No, "int"s are still 32bit in the 64bit compilation model. And they
will still overflow.

Rich
Received on Mon Oct 04 2010 - 15:25:35 MDT