Re: Error running Fio SSD example

["Georg Schönberger" <gschoenberger@thomas-krenn.com>]

Am 2012-06-08 14:47, schrieb Jens Axboe:
> On 06/01/2012 12:06 PM, Georg Schönberger wrote:
>> Hello again,
>>
>> I am having some troubles with running the fio example "ssd-test". I
>> changed the global section to decrease the size:
>> [global]
>> bs=4k
>> ioengine=libaio
>> iodepth=4
>> size=100M
>> direct=1
>> runtime=60
>> filename=ssd.test.file
>>
>> If I am running Fio I get the following error:
>> ----------------------------------------
>> fio.git/examples$ fio ssd-test
>> seq-read: (g=0): rw=read, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
>> rand-read: (g=1): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
>> seq-write: (g=2): rw=write, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
>> rand-write: (g=3): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
>> fio-2.0.8
>> Starting 4 processes
>> fio: pid=17997, err=22/file:filesetup.c:529, func=open(ssd.test.file),
>> error=Invalid argument
>> fio: pid=17998, err=22/file:filesetup.c:529, func=open(ssd.test.file),
>> error=Invalid argument
>> fio: pid=17999, err=22/file:filesetup.c:529, func=open(ssd.test.file),
>> error=Invalid argument
>> fio: pid=18000, err=22/file:filesetup.c:529, func=open(ssd.test.file),
>> error=Invalid argument
> Looks like the file system hosting the test file does not support
> O_DIRECT.
>
The file system is ext4.
Kernel Version 3.2.0-24-generic

-Georg