Re: Phar performances benchmark

Olivier Doucet wrote: > Hello everyone, > > I was testing phar performances, and I decided to share my results with you. > I'm not sure QA is the best mailing list for it, but maybe these results > could be connected to the phpbench project ? > > I used phpmyadmin project to test phar archives. Folder is > "phpMyAdmin-3.1.5-all-languages", with 661 files in 35 folders for a total > size of 11 232 453 bytes. > I used PHP 5.3.0-RC2 as cli. > > Creation of archives: > - BZ2 compression with SHA1 signature 4.9 sec 2,863,812 bytes > - BZ2 compression with MD5 signature 5.2 sec 2,863,759 bytes > - GZ compression with SHA1 signature 3.3 sec 3,608,594 bytes > - GZ compression with MD5 signature 3.6 sec 3,608,598 bytes > - not compressed with SHA1 signature 1.3 sec 11,277,397 bytes > - not compressed with MD5 signature 1.9 sec 11,277,392 bytes > > => Results changed slightly when launching again the bench. Perfs between > signatures should be seen as equals. > > > Reads (200.000 loops) : (consists of two file_get_contents) > Base result: reading directly in folder: > phpMyAdmin-3.1.5-all-languages: 12.1 sec > > Now use "phar://" as path: > plain_md5: 17.0 sec > plain_sha1: 16.7 sec > gz_md5: 16.4 sec > gz_sha1: 17.1 sec > bz2_md5: 17.9 sec > bz2_sha1: 19.2 sec > > As you can see, performances are very good in gzip format (no difference > with direct read) ; bz2 is slower, but I was expecting worst results. > > > Scripts are available on demand (they are not "clean", that's why I didn't > published it here directly). Hi Olivier, This is great to see. Also useful would be a direct comparison of the phar format with tar-based and zip-based phars with each compression possible, as well as a comparison against reading the files off-disk with PHP. It might also be interesting to compare using phar to create an archive with buildFromDirectory() against the tar/zip commands directly, or against ext/zip. Even more interesting to users (I think) is a comparison of running phpMyAdmin directly against running it out of a phar archive with the various formats, as well as running it with phar.cache_list set to the full path to the archive. Thanks, Greg