Re: very poor ext3 write performance on big filesystems?

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Paulo Marques wrote:
Mark Lord wrote:
Theodore Tso wrote:
..
The following ld_preload can help in some cases.  Mutt has this hack
encoded in for maildir directories, which helps.
..

Oddly enough, that same spd_readdir() preload craps out here too
when used with "rm -r" on largish directories.

 From looking at the code, I think I've found at least one bug in opendir:
...
dnew = realloc(dirstruct->dp, dirstruct->max * sizeof(struct dir_s));
...

Shouldn't this be: "...*sizeof(struct dirent_s));"?
..

Yeah, that's one bug.
Another is that ->fd is frequently left uninitialized, yet later used.

Fixing those didn't change the null pointer deaths, though.


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