On Thu, 29.03.12 15:42, David Lambert (d...@lambsys.com) wrote: > Thanks Lennart, it looks like your guess was spot on! See attached > trace. Any suggestions on how to narrow this down further?
So, this is probably simply because we try to map 128M of each journal file by default, which is not much of a problem on a machine with 64bit address space (like the one i use), but might be on a 32bit system. (leaves < 16 mappings only, which means you can only have less than 16 journal files around that we need to interleave). I have now reduced the default mapping size to 8M, which leaves < 256 mappings. Should be enough for a while, but if this turns out to be too little still, then we can implement some logic so that we unmap mappings dynamically if we have too many of them. The default window size can be controlled with the DEFAULT_WINDOW_SIZE macro at the top of src/journal/journal-file.c. Lennart -- Lennart Poettering - Red Hat, Inc. _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
