Maxim Dounin Wrote: ------------------------------------------------------- > Hello! > > On Sat, Jun 28, 2014 at 12:38:12AM -0400, c0nw0nk wrote: > > > Latest picture > > http://s633.photobucket.com/user/C0nw0nk/media/Untitled-7.png.html > > > > Everything utilizing the read's and writes is nginx and when i set > the > > following buffers i get massive spikes like that. > > > > location ~ \.mp4$ { > > mp4; > > mp4_buffer_size 9000m; > > mp4_max_buffer_size 9000m; > > } > > Note that when using mp4 module, you should not set > mp4_buffer_size too high. It's initial size of a buffer used to > read mp4 files, and if a value specified is bigger than size of > the moov atom in an mp4 file, reading extra bytes will be > meaningless. It is generally recommended to set it to something > like 512k (the default) or slightly larger (1m, 2m). Larger > values make sense only if most of your mp4 files have huge moov > atoms. > > Note well that if you use mp4 pseudo streaming, you should make > sure that mp4 files are correctly prepared - i.e., with moov atom > placed before mdat. While nginx will be able to work with files > with moov atom at the end, it won't be able to do this > efficiently. > > -- > Maxim Dounin > http://nginx.org/ > > _______________________________________________ > nginx mailing list > [email protected] > http://mailman.nginx.org/mailman/listinfo/nginx
All videos are already set out like that i also use the following python script to ensure that they have meta data at the start of the file instead of the end. https://gist.github.com/marpada/12e7d4a093aec402a989 I did a simple test to confirm it is I/O usage due to large files i run nginx same traffic conditions but i block "deny all;" to mp4, flv files and my i/o usage by nginx is about 1mb max and a few kb so i can confirm it is large files that are doing it i am currently looking into what would be better for me a SSD or a SAS 15K RPM. Posted at Nginx Forum: http://forum.nginx.org/read.php?2,251186,251316#msg-251316 _______________________________________________ nginx mailing list [email protected] http://mailman.nginx.org/mailman/listinfo/nginx
