I have a page where _filter_url() is 30% of the load time. The content has lots of markup and the $chunks array in _filter_url() ends up with over 5000 items. A simple change from preg_match() to strcasecmp() reduces my page load time for _filter_url() to only 20% of the page time, from 190msec to 120msec.

CommentFileSizeAuthor
#9 core-D7-filter-url-2056731-9.patch525 bytesdouggreen
#8 core-D7-filter-url-2056731-6.patch535 bytesdouggreen
#6 core-filter-url-2056731-5.patch545 bytesdouggreen
filter-url-1.patch544 bytesdouggreen

Comments

catch’s picture

catch
he/him
Primary language English
commented

I didn't have as good an example, but this reduced 3.5ms down to 2.6ms on a relatively short page (204 calls to preg_replace() changed to strcasecmp()).

This should be a good improvement on sites with lots of content (hence a high filter cache miss), or sites which have filters that disable the filter cache altogether.

catch’s picture

catch
he/him
Primary language English
commented
Issue tags: +Needs backport to D7
j0rd’s picture

j0rd commented

Doesn't look like the preg_match needs to be there, unless the chunks have additional characters on the left or right, in which case preg_match() would return 1 and strcasecmp() would return 0.

If that's not the case, and it's faster then looks like a good patch to me.

zero2one’s picture

zero2one commented
Status: Active » Needs review

Changed the status to needs review so the testbot picks it up.

The last submitted patch, filter-url-1.patch, failed testing.

douggreen’s picture

douggreen commented
Issue summary: View changes
StatusFileSize
new core-filter-url-2056731-5.patch545 bytes

Doh! While reviewing patches applied to a client site, I discovered that this had a very stupid problem, $i instead of 1! And 2 years later :( Let's see if this passes tests.

douggreen’s picture

douggreen commented
Status: Needs work » Needs review

The same patch applies to D7 and D8 :)

douggreen’s picture

douggreen commented
StatusFileSize
new core-D7-filter-url-2056731-6.patch535 bytes

Well, it almost applies ... here's the D7 backport

douggreen’s picture

douggreen commented
StatusFileSize
new core-D7-filter-url-2056731-9.patch525 bytes

It's nice that it applies here, but I'm using these patches with composer and https://github.com/cweagans/composer-patches, so here's another minor fix.

Status: Needs review » Needs work

The last submitted patch, 9: core-D7-filter-url-2056731-9.patch, failed testing.

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smustgrave’s picture

smustgrave commented
Status: Needs work » Postponed (maintainer needs more info)
Issue tags: +stale-issue-cleanup

Thank you for creating this issue to improve Drupal.

We are working to decide if this task is still relevant to a currently supported version of Drupal. There hasn't been any discussion here for over 8 years which suggests that this has either been implemented or is no longer relevant. Your thoughts on this will allow a decision to be made.

Since we need more information to move forward with this issue, the status is now Postponed (maintainer needs more info). If we don't receive additional information to help with the issue, it may be closed after three months.

Thanks!

smustgrave’s picture

smustgrave commented

Wanted to bump 1 more time, could we get an profiling to prove this?

Version: 11.x-dev » main

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smustgrave’s picture

smustgrave commented
Status: Postponed (maintainer needs more info) » Needs work
Issue tags: +Needs title update, +Needs issue summary update

Function has been turned to OOP service but still uses preg_match()