| Re: READS as a speed improvement or simply style? [message #52442] |
Thu, 08 February 2007 13:35 |
Brian Larsen
Messages: 270
Registered: June 2006
|
Senior Member |
|
|
Bob,
nice noticing. I remove the trim function (removes leading and
trailing spaces)
and I get the same speed.
IDL> .run test
Elapsed time: 00:00:08 (8.5097780 sec)
Elapsed time: 00:00:08 (8.4192050 sec)
So the slow culprit is trim.
Brian
------------------------------------------------------------ ---------
Brian A. Larsen
Dept. of Physics
Space Science and Engineering Lab (SSEL)
Montana State University - Bozeman
Bozeman, MT 59717
On Feb 8, 2:29 pm, "R.G. Stockwell" <n...@email.please> wrote:
> "Brian Larsen" <balar...@gmail.com> wrote in message
>
> news:1170969593.224830.24540@j27g2000cwj.googlegroups.com...
> ...
> Elapsed time: 00:00:29 (29.851995 sec)
> ...
>
>> Elapsed time: 00:00:08 (8.1684880 sec)
>
>> Which is pretty amazing!!!
>
> It may be due in a fair bit to the fact that method one
> calls 10 functions each iteration, and method 2 calls 1.
> There is some overhead involved in each function call.
>
> Personally I don't see that much of a difference
> I get the opposite result: (removing the unkown trim function)
> Elapsed time: 5.2030001 Seconds.
>
> Elapsed time: 7.0630000 Seconds.
>
> Cheers,
> bob
|
|
|
|
| Re: READS as a speed improvement or simply style? [message #52444 is a reply to message #52442] |
Thu, 08 February 2007 13:29  |
news.qwest.net
Messages: 137
Registered: September 2005
|
Senior Member |
|
|
"Brian Larsen" <balarsen@gmail.com> wrote in message
news:1170969593.224830.24540@j27g2000cwj.googlegroups.com...
...
Elapsed time: 00:00:29 (29.851995 sec)
...
> Elapsed time: 00:00:08 (8.1684880 sec)
>
> Which is pretty amazing!!!
It may be due in a fair bit to the fact that method one
calls 10 functions each iteration, and method 2 calls 1.
There is some overhead involved in each function call.
Personally I don't see that much of a difference
I get the opposite result: (removing the unkown trim function)
Elapsed time: 5.2030001 Seconds.
Elapsed time: 7.0630000 Seconds.
Cheers,
bob
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
