FW: default value for random_generator

FW: default value for random_generator

[Ruvinsky, Konstantin]

Hi,

In the description of random_generator=str in HowTo
( http://git.kernel.dk/?p=fio.git;a=blob;f=HOWTO;h=7c24c1b74296aa33cdff97eca9458defd291b6ca;hb=HEAD )
is not written now what is its default value.

Regards

Re: FW: default value for random_generator

[Jens Axboe]

On 01/27/2016 05:21 AM, Ruvinsky, Konstantin wrote:
> Hi,
>
> In the description of random_generator=str in HowTo
> ( http://git.kernel.dk/?p=fio.git;a=blob;f=HOWTO;h=7c24c1b74296aa33cdff97eca9458defd291b6ca;hb=HEAD )
> is not written now what is its default value.

$ fio --cmdhelp=random_generator

care to send a patch to add it to the HOWTO/man page?
     random_generator: Type of random number generator to use
                 type: string (opt=bla)
              default: tausworthe
         valid values: tausworthe Strong Tausworthe generator
                     : lfsr       Variable length LFSR
                     : tausworthe64 64-bit Tausworthe variant

Care to send a patch to update the HOWTO/man page?

-- 
Jens Axboe

RE: FW: default value for random_generator

[Ruvinsky, Konstantin]

Hi Jens,

Thanks for your answer. Sorry for delay - was OOO.
The patch is very simple: is necessary to add words ", this is the default value" after description of the tausworthe generator:


 999 random_generator=str    Fio supports the following engines for generating
1000                 IO offsets for random IO:
1001 
1002                 tausworthe      Strong 2^88 cycle random number generator,
			        this is the default value.
1003                 lfsr            Linear feedback shift register generator
1004                 tausworthe64    Strong 64-bit 2^258 cycle random number
1005                                 generator

Could you please add it to one of your future commits, since I'm not familiar enough with patching?

Thank you.

-----Original Message-----
From: Jens Axboe [mailto:axboe@kernel.dk] 
Sent: Thursday, January 28, 2016 12:14 AM
To: Ruvinsky, Konstantin; fio@vger.kernel.org
Subject: Re: FW: default value for random_generator

On 01/27/2016 05:21 AM, Ruvinsky, Konstantin wrote:
> Hi,
>
> In the description of random_generator=str in HowTo ( 
> http://git.kernel.dk/?p=fio.git;a=blob;f=HOWTO;h=7c24c1b74296aa33cdff9
> 7eca9458defd291b6ca;hb=HEAD ) is not written now what is its default value.

$ fio --cmdhelp=random_generator

care to send a patch to add it to the HOWTO/man page?
     random_generator: Type of random number generator to use
                 type: string (opt=bla)
              default: tausworthe
         valid values: tausworthe Strong Tausworthe generator
                     : lfsr       Variable length LFSR
                     : tausworthe64 64-bit Tausworthe variant

Care to send a patch to update the HOWTO/man page?

--
Jens Axboe

Re: FW: default value for random_generator

[Jens Axboe]

On 01/30/2016 10:21 AM, Ruvinsky, Konstantin wrote:
> Hi Jens,
>
> Thanks for your answer. Sorry for delay - was OOO.
> The patch is very simple: is necessary to add words ", this is the default value" after description of the tausworthe generator:
>
>
>   999 random_generator=str    Fio supports the following engines for generating
> 1000                 IO offsets for random IO:
> 1001
> 1002                 tausworthe      Strong 2^88 cycle random number generator,
> 			        this is the default value.
> 1003                 lfsr            Linear feedback shift register generator
> 1004                 tausworthe64    Strong 64-bit 2^258 cycle random number
> 1005                                 generator
>
> Could you please add it to one of your future commits, since I'm not familiar enough with patching?

Sure, I added a mention of that to the HOWTO and man page.

-- 
Jens Axboe