I was not on the list at the time that Edi posted the message "1.4.0/1 performance" which is why I am posting a new one instead of replying.
I am using threaded SBCL 1.0.18 on gentoo amd64. On my platform, matching has slowed to a crawl. It takes 1.5 to 2 seconds to perform the following match:
(cl-ppcre:all-matches-as-strings "^\d\d\d\d-\d\d-\d\d\d\d:\d\d:\d\d.0$" <anystring>)
I'm sure I could write this regex better. Nevertheless it runs hundreds of times slower than it did previously.
I'll test on the same setup with x86 and give a report.
Carlos Konstanski
On Thu, 17 Jul 2008 08:55:23 -0600, Carlos Konstanski ckonstanski@pippiandcarlos.com wrote:
I was not on the list at the time that Edi posted the message "1.4.0/1 performance" which is why I am posting a new one instead of replying.
I am using threaded SBCL 1.0.18 on gentoo amd64. On my platform, matching has slowed to a crawl. It takes 1.5 to 2 seconds to perform the following match:
(cl-ppcre:all-matches-as-strings "^\d\d\d\d-\d\d-\d\d\d\d:\d\d:\d\d.0$" <anystring>)
I'm sure I could write this regex better. Nevertheless it runs hundreds of times slower than it did previously.
I'll test on the same setup with x86 and give a report.
No need to do that, I just tested on x86 and it looks just as bad there. The good news is that I have a completely re-factored CL-PPCRE on my hard disk which will be released in a couple of days and which won't have this problem anymore, so stay tuned.
Thanks for the report, Edi.
On Thu, 17 Jul 2008, Edi Weitz wrote:
Date: Thu, 17 Jul 2008 22:01:40 +0200 From: Edi Weitz edi@agharta.de Reply-To: General interest list about cl-ppcre cl-ppcre-devel@common-lisp.net To: General interest list about cl-ppcre cl-ppcre-devel@common-lisp.net Subject: Re: [cl-ppcre-devel] slow matching
On Thu, 17 Jul 2008 08:55:23 -0600, Carlos Konstanski ckonstanski@pippiandcarlos.com wrote:
I was not on the list at the time that Edi posted the message "1.4.0/1 performance" which is why I am posting a new one instead of replying.
I am using threaded SBCL 1.0.18 on gentoo amd64. On my platform, matching has slowed to a crawl. It takes 1.5 to 2 seconds to perform the following match:
(cl-ppcre:all-matches-as-strings "^\d\d\d\d-\d\d-\d\d\d\d:\d\d:\d\d.0$" <anystring>)
I'm sure I could write this regex better. Nevertheless it runs hundreds of times slower than it did previously.
I'll test on the same setup with x86 and give a report.
No need to do that, I just tested on x86 and it looks just as bad there. The good news is that I have a completely re-factored CL-PPCRE on my hard disk which will be released in a couple of days and which won't have this problem anymore, so stay tuned.
Thanks for the report, Edi.
Thanks for the quick reply. I'll forward this to my supervisor so he can see how much cooler it is to use open source software than <insert_any_evil_software_empire_here>.
Carlos Konstanski
On Thu, 17 Jul 2008, Edi Weitz wrote:
Date: Thu, 17 Jul 2008 22:01:40 +0200 From: Edi Weitz edi@agharta.de Reply-To: General interest list about cl-ppcre cl-ppcre-devel@common-lisp.net To: General interest list about cl-ppcre cl-ppcre-devel@common-lisp.net Subject: Re: [cl-ppcre-devel] slow matching
On Thu, 17 Jul 2008 08:55:23 -0600, Carlos Konstanski ckonstanski@pippiandcarlos.com wrote:
I was not on the list at the time that Edi posted the message "1.4.0/1 performance" which is why I am posting a new one instead of replying.
I am using threaded SBCL 1.0.18 on gentoo amd64. On my platform, matching has slowed to a crawl. It takes 1.5 to 2 seconds to perform the following match:
(cl-ppcre:all-matches-as-strings "^\d\d\d\d-\d\d-\d\d\d\d:\d\d:\d\d.0$" <anystring>)
I'm sure I could write this regex better. Nevertheless it runs hundreds of times slower than it did previously.
I'll test on the same setup with x86 and give a report.
No need to do that, I just tested on x86 and it looks just as bad there. The good news is that I have a completely re-factored CL-PPCRE on my hard disk which will be released in a couple of days and which won't have this problem anymore, so stay tuned.
Thanks for the report, Edi.
I just noticed the new 2.0 version, and it works like a champ! Thanks so much for getting that released. I will bug the gentoo lisp herd to get it updated in their overlay.
Your English is quite amazing, by the way. I was tempted to write my posts in German, but you can probably read my English more easily.
Carlos Konstanski
cl-ppcre-devel@common-lisp.net
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Carlos Konstanski -
Edi Weitz