Do you have any performance tests to show the difference?
Mike
On Sep 18, 2008, at 6:50 PM, Cristian Talle wrote:
I gave it a try though... and it works nicely (at least for
directory entries for now). I've added 3 more commands to xml_curl:
cache_on, cache_off and cache_delete_key.
- cache_on - enables caching: it will store in a switch_hash_t
structure all xml strings returned by curl, using <username>@<realm>
as a key (since we're talking directory only in this example). The
same key is looked up every time the xml is requested for that user/
realm and the code returns an xml structure created using
switch_parse_xml_from_str().
- cache_off - switches back to the original behavior and clears the
hash.
- cache_delete_key <key> - will invalidate the cache entry so that
next time it is reloaded by curl.
considering a 500 bytes - 1K string for each profile, you can cache
10000 user profiles in ~10M (considering we're storing the char* s)
please see a sample console output,with a terminal registering every
25 seconds
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[EMAIL PROTECTED]> 2008-09-18 18:26:19 [CONSOLE]
mod_xml_curl.c:363 xml_url_fetch() XML response is in /tmp/
d0c586a8-85d0-11dd-838c-5148f6e85b7b.tmp.xml
[EMAIL PROTECTED]> xml_curl cache_on
API CALL [xml_curl(cache_on)] output:
OK
[EMAIL PROTECTED]> 2008-09-18 18:26:44 [CONSOLE]
mod_xml_curl.c:245 xml_url_fetch() Key is not in cache [EMAIL PROTECTED]
].
2008-09-18 18:26:45 [CONSOLE] mod_xml_curl.c:363 xml_url_fetch() XML
response is in /tmp/e00c7ae0-85d0-11dd-838c-5148f6e85b7b.tmp.xml
2008-09-18 18:27:10 [CONSOLE] mod_xml_curl.c:231 xml_url_fetch()
Using xml from cache: [EMAIL PROTECTED]
2008-09-18 18:27:35 [CONSOLE] mod_xml_curl.c:231 xml_url_fetch()
Using xml from cache: [EMAIL PROTECTED]
[EMAIL PROTECTED]> xml_curl cache_delete_key [EMAIL PROTECTED]
2008-09-18 18:27:42 [NOTICE] mod_xml_curl.c:128 xml_curl_function()
Removing value for [EMAIL PROTECTED]
API CALL [xml_curl(cache_delete_key [EMAIL PROTECTED])] output:
OK
2008-09-18 18:28:01 [CONSOLE] mod_xml_curl.c:245 xml_url_fetch() Key
is not in cache [EMAIL PROTECTED]
2008-09-18 18:28:01 [CONSOLE] mod_xml_curl.c:363 xml_url_fetch() XML
response is in /tmp/0d729f00-85d1-11dd-838c-5148f6e85b7b.tmp.xml
[EMAIL PROTECTED]> xml_curl cache_off
2008-09-18 18:28:07 [NOTICE] mod_xml_curl.c:102 xml_curl_function()
cleaning up directory cache
API CALL [xml_curl(cache_off)] output:
OK
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