Adam Borowski wrote: > I think that box had jfs, but other filesystems are no different: for > example, ext* will fsync() during a rename() call behind your back even if > you don't request it, forcing every file to hit the disk platters even > though they'll immediately get changed again. For files outside /tmp/ that > makes sense: the system has to guarantee you won't lose data during a crash. > But why should I care about not losing temp files? In practice, it's rare for anything that uses libc's interfaces to /tmp (or TMPDIR directly) to rename files in /tmp. Files in /tmp are opened, unlinked, written, read, and closed. Renaming files in /tmp is thus not likely to be a major source of system load. My charge of premature optimisation stands. -- see shy jo
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