In investigating heavy load during clamd scanning on an email server, I noticed that scanning XML files appears to take longer than similar sized binary files. I'm also seeing a big drop off in performance when scanning certain large files, e.g. PowerPoint, Word. Tests with clamdscan on a dual PIII 1.2GHz:
750KB Excel file: 0.36s 2MB Word doc: 5.0s 3MB binary file: 0.75s 3MB XML file: 1.28s 6MB SO library: 1.51s 7MB XML file: 3.60s 7.5MB PowerPoint file: 66s A different scanner tested on the same hardware stayed below 1.5s for all the tests (below 0.3s for most of them). Are there any options for tuning clamd, short of buying oodles more and faster cpus? Thanks, -- des -- http://frommars.org/ _______________________________________________ http://lurker.clamav.net/list/clamav-users.html
