RAM Disk Dataset¶

Compare the performance of ffmpeg when videos are read and written to RAM, and when they are read and written to the hard drive.

Download¶

mendevi download ramdisk.db.xz.torrent

ramdisk.json.xz (481 Ko).
ramdisk.db.xz.torrent (289 Mo).

Plots¶

Effect on encoding¶

mendevi plot '<ramdisk.db>' -x rate -y energy -c enc_ram -wx profile -e enc_scenario -s 'sharey="row"' 'sharey=False'

Variation of encoding energy depending of device.

Effect on decoding¶

mendevi plot '<ramdisk.db>' -x rate -y energy -c dec_ram -wx profile -e dec_scenario -s 'sharey="row"' 'sharey=False'

Variation of decoding energy depending of device.

Reproduce¶

mendevi prepare park_joy.mkv -p sd
mendevi prepare park_joy.mkv -p fhd

mendevi encode -r 5 -c libx264 -c libsvtav1 -e fast -e medium -t 8 -t 16 --ram yes -d ram_yes.db reference*
mendevi encode -r 5 -c libx264 -c libsvtav1 -e fast -e medium -t 8 -t 16 --ram no -d ram_no.db reference*
mendevi decode -r 5 --family cpu --ram yes -d ram_yes.db sample*
mendevi decode -r 5 --family cpu --ram no -d ram_no.db sample*
mendevi merge ram_yes.db ram_no.db && mv merge_ram_yes_ram_no.db ramdisk.db

mendevi probe -d ramdisk.db --no-psnr --no-ssim --no-vif --no-vmaf reference* sample*