diff options
Diffstat (limited to 'TODO')
| -rw-r--r-- | TODO | 25 |
1 files changed, 5 insertions, 20 deletions
@@ -249,26 +249,11 @@ Features: Macros may retrieve the code and string of the last error. Optimizations: - * The Linux-specific memory limiting using mallinfo() is - very slow (50% to 150% slower than the fallback implementation - measured in batch mode). - The fallback implementation does not come with much of a - runtime penalty. - Still I've found no faster way of measuring the process heap. - A soft resource limit would be ideal but unfortunately, - it lets malloc() return NULL and we're not in control of all - the mallocs, so glib could abort before we have a chance to - react on it. - Since the slow-down affects interactive mode as well, disabling - limiting in batch mode is merely a workaround. - Perhaps Linux should simply use the fallback limiting as well - (or support this via a configure option). - On Windows (2000), the overhead is approx. the same. - * Another Linux/glibc-specific workaround may be to hook into - all malloc(), realloc() and free() calls and count the - "usable" size of each heap object, thus avoiding mallinfo(). - Malloc hooks are deprecated, but the symbols are weak and - can be overwritten. + * The Windows-specific memory limiting using GetProcessMemoryInfo() + is very slow. Perhaps a similar approach to the generic UNIX + malloc() hooking can be implemented and memory_usage counted + with _msize() from MSVCRT. + This must be benchmarked. * Add G_UNLIKELY to all error throws. * Instead of using RTTI to implement the immediate editing command behaviours in Cmdline::process_edit_cmd() depending on the current |