diff options
Diffstat (limited to 'doc/todo')
| -rw-r--r-- | doc/todo/avoid_thrashing.mdwn | 22 | ||||
| -rw-r--r-- | doc/todo/syntax_highlighting.mdwn | 2 |
2 files changed, 23 insertions, 1 deletions
diff --git a/doc/todo/avoid_thrashing.mdwn b/doc/todo/avoid_thrashing.mdwn new file mode 100644 index 000000000..45b11d872 --- /dev/null +++ b/doc/todo/avoid_thrashing.mdwn @@ -0,0 +1,22 @@ +Problem: Suppose a server has 256 mb ram. Each ikiwiki process needs about +15 mb, before it's loaded the index. (And maybe 25 after, but only one such +process runs at any time). That allows for about 16 ikiwiki processes to +run concurrently on a server, before it starts to swap. Of course, anything +else that runs on the server and eats memory will affect this. + +One could just set `MaxClients 16` in the apache config, but then it's also +limited to 16 clients serving static pages, which is silly. Also, 16 is +optimistic -- 8 might be a saner choice. And then, what if something on the +server decides to eat a lot of memory? Ikiwiki can again overflow memory +and thrash. + +It occurred to me that the ikiwiki cgi wrapper could instead do locking of +its own (say of `.ikiwiki/cgilock`). The wrapper only needs a few kb to +run, and it starts *fast*. So hundreds could be running waiting for a lock +with no ill effects. Crank `MaxClients` up to 256? No problem.. + +And there's no real reason to allow more than one ikiwiki cgi to run at a +time. Since almost all uses of the CGI lock the index, only one can really +be doing anything at a time. --[[Joey]] + +[[done]] diff --git a/doc/todo/syntax_highlighting.mdwn b/doc/todo/syntax_highlighting.mdwn index 97526bae6..2bdeb62be 100644 --- a/doc/todo/syntax_highlighting.mdwn +++ b/doc/todo/syntax_highlighting.mdwn @@ -23,7 +23,7 @@ pages, as well as doing syntax highlighting as a preprocessor directive * [[sourcecode|todo/automatic_use_of_syntax_plugin_on_source_code_files/discussion]] also uses src-highlight, and operates on whole source files. Updated to work with the fix for [[bugs/multiple_pages_with_same_name]]. Untested with files with no extension, e.g. `Makefile`. -* [[user/jrblevin]]'s code plugin uses src-highlight, and supports both +* [[users/jasonblevins]]'s code plugin uses src-highlight, and supports both while file and directive use. ## General problems |