firefox-chromium-opera memory bench

Chromium 5.0.377.0 (44350)	:608484KB
Firefox 4.0b			:152056KB
Firefox 3.6.6			:182448KB
Opera 10.60			:229688KB

Chromium:
------------------------------------------------------------------------------
Gozer # chromium &>/tmp/out &
Gozer # echo 3 > /proc/sys/vm/drop_caches ; sleep 1 ; free
             total       used       free     shared    buffers     cached
Mem:       4123856    1866640    2257216          0       1956     139812
-/+ buffers/cache:    1724872    2398984
Swap:      4104564       6164    4098400
Gozer # killall chromium
Gozer # echo 3 > /proc/sys/vm/drop_caches ; sleep 1 ; free
             total       used       free     shared    buffers     cached
Mem:       4123856    1258156    2865700          0       1620     108000
-/+ buffers/cache:    1148536    2975320
Swap:      4104564       6164    4098400

Ram occupata da Chromium = 2865700 - 2257216 = 608484KB





Firefox 4.0 beta:
------------------------------------------------------------------------------
Gozer # ./firefox &>/tmp/out &
Gozer # echo 3 > /proc/sys/vm/drop_caches ; sleep 1 ; free
             total       used       free     shared    buffers     cached
Mem:       4123856    1411592    2712264          0       2488     134132
-/+ buffers/cache:    1274972    2848884
Swap:      4104564       6156    4098408
Gozer # killall firefox
Gozer # echo 3 > /proc/sys/vm/drop_caches ; sleep 1 ; free
             total       used       free     shared    buffers     cached
Mem:       4123856    1259536    2864320          0       3384     109004
-/+ buffers/cache:    1147148    2976708
Swap:      4104564       6156    4098408

Ram occupata da Firefox4 beta = 2864320 - 2712264 = 152056KB





Firefox 3.6.6
------------------------------------------------------------------------------
Gozer # firefox &>/tmp/out &
Gozer # echo 3 > /proc/sys/vm/drop_caches ; sleep 1 ; free
             total       used       free     shared    buffers     cached
Mem:       4123856    1437564    2686292          0       1900     136400
-/+ buffers/cache:    1299264    2824592
Swap:      4104564       6140    4098424
Gozer # killall firefox
Gozer # echo 3 > /proc/sys/vm/drop_caches ; sleep 1 ; free
             total       used       free     shared    buffers     cached
Mem:       4123856    1255116    2868740          0       1268     107640
-/+ buffers/cache:    1146208    2977648
Swap:      4104564       6140    4098424

Ram occupata da Firefox 3.6.6 = 2868740 - 2686292 = 182448KB





Opera 10.60
------------------------------------------------------------------------------
Gozer # opera &>/tmp/out &
Gozer # echo 3 > /proc/sys/vm/drop_caches ; sleep 1 ; free
             total       used       free     shared    buffers     cached
Mem:       4123856    1485240    2638616          0       2772     120756
-/+ buffers/cache:    1361712    2762144
Swap:      4104564       6120    4098444
Gozer # killall opera
Gozer # echo 3 > /proc/sys/vm/drop_caches ; sleep 1 ; free
             total       used       free     shared    buffers     cached
Mem:       4123856    1255552    2868304          0       2188     108260
-/+ buffers/cache:    1145104    2978752
Swap:      4104564       6120    4098444

Ram occupata da Opera 10.60 = 2868304 - 2638616 = 229688KB