Gostaria de monitorar a memória livre em quatro computadores, cada um executando o Windows Server 2003 R2 SP2 de 64 bits. Cada caixa tem 31,7 gb de RAM. Gostaria de executar periodicamente uma ferramenta de linha de comando para poder coletar a saída e depois criar gráficos com ela.
Executei alguns testes e coletei a saída do vmstat periodicamente, usando o Cygwin. Estou vendo números assim:
0 0 1235228 4194303 0 0 0 0 0 0 4652 3089 1 5 94 0
0 0 1235228 4194303 0 0 0 0 0 0 4718 7591 5 4 91 0
0 0 1235228 4194303 0 0 0 0 0 0 5027 7816 5 4 92 0
0 0 1235228 4194303 0 0 0 0 0 0 4886 7099 3 3 93 0
Em uma máquina completamente diferente, vejo esses números:
0 0 10344 4194303 0 0 32 0 1 0 3113 6492 32 10 58 0
0 0 10340 4194303 0 0 0 0 0 0 3908 6180 38 11 51 0
0 0 10340 4194303 0 0 0 0 0 0 2094 4501 23 5 72 0
0 0 10340 4194303 0 0 0 0 0 0 2435 3792 32 5 63 0
Eu pretendia usar a quarta coluna, "free", para determinar a quantidade de memória livre. No entanto, esta coluna é 4194303 em todas as quatro caixas! Isso não parece se correlacionar com qualquer número no gerenciador de tarefas. Eu acho que esta coluna não é útil? 4194303 é algum número mágico?
Não consegui encontrar uma ferramenta de linha de comando para monitorar o uso de CPU do processo. As ferramentas do Cygwin não parecem fazer isso. Acabei escrevendo uma ferramenta que chamo de cpumem (Google Code) . Minha ferramenta também gera memória por processo. Talvez isso possa ser útil para determinar o total de memória usada, que eu poderia usar para determinar a memória livre? Aqui está um exemplo de saída da minha ferramenta:
Name PID CPU PageFaultCount PeakWorkingSetSize WorkingSetSize QuotaPeakPagedPoolUsage QuotaPagedPoolUsage QuotaPeakNonPagedPoolUsage QuotaNonPagedPoolUsage PagefileUsage PeakPagefileUsage
Idle 0 362
System 4 2 17019 4857856 258048 0 0 80 80 45056 45056
smss 408 0 1371 1257472 684032 27704 7696 1520 1120 229376 2527232
csrss 456 0 265739 4042752 4005888 206112 205264 10608 10160 1781760 1789952
winlogon 480 0 4223496 15458304 15282176 150992 126576 130272 129120 10924032 11526144
services 528 6 8328 5210112 5144576 66024 63400 14416 12256 2703360 2928640
lsass 540 0 14312 12607488 12558336 105200 100400 30976 25344 11763712 12058624
svchost 716 0 1774 4636672 4608000 57704 53832 8512 5264 1634304 1806336
svchost 788 0 8397 5877760 5804032 68488 66992 35536 33984 2318336 2457600
svchost 852 0 7341 7426048 7352320 113496 100176 21330 16342 6791168 6991872
svchost 888 0 1321 5218304 5197824 57680 57648 10256 8544 2134016 2469888
svchost 904 0 319648 37355520 28160000 227912 206056 52384 38384 20017152 35856384
spoolsv 1036 0 82386 10686464 8921088 149696 106656 12528 10224 5988352 7823360
msdtc 1064 0 1814 7053312 6979584 63264 62656 12752 11424 2785280 2916352
svchost 1260 0 25164 5328896 3710976 77576 49096 5072 4080 1306624 3690496
svchost 1412 0 723 2912256 2908160 35200 35008 4432 3984 1187840 1191936
VMwareService 2008 0 1797 6971392 6897664 119624 118888 11120 6944 3108864 3231744
svchost 432 0 7845 7294976 7151616 98552 96304 12512 11232 3588096 24743936
dllhost 2096 0 2966 10526720 10362880 75568 74464 12128 9984 4001792 4362240
wmiprvse 2736 0 3955 12021760 9736192 73360 70112 8320 6960 4620288 7536640
logon.scr 1112 0 630 2564096 2543616 76648 76080 2960 2960 1187840 1187840
httpd 5744 0 59245 8650752 8650752 83728 66840 128494 100894 4268032 4460544
cmd 6336 0 754 2797568 2797568 33584 33000 3760 3600 2203648 2236416
cmd 6840 0 754 2797568 2797568 33584 33000 3760 3600 2203648 2236416
rotatelogs 8212 0 857 3366912 3366912 66080 51840 4464 4464 1617920 1617920
rotatelogs 3296 0 846 3321856 3321856 66080 51840 4400 4384 1581056 1581056
httpd 7536 0 42975 11481088 11460608 82280 70664 34976 30624 8179712 8241152
cmd 5948 0 753 2793472 2793472 33584 33000 3760 3600 2203648 2236416
rotatelogs 2968 0 863 3391488 3391488 66080 51840 4464 4464 1650688 1650688
cmd 2532 0 753 2793472 2793472 33584 33000 3760 3600 2203648 2236416
rotatelogs 8584 0 863 3391488 3391488 66080 51840 4464 4464 1650688 1650688
wrapper 5800 0 998 4038656 4005888 39992 39960 7846 6960 1929216 1970176
java 7708 0 1873243 161222656 134750208 125392 121616 515910 122640 130805760 157409280
csrss 1520 0 3747 5390336 4505600 108024 100128 9040 6960 2060288 2097152
winlogon 2804 0 4568 11296768 4702208 165832 163496 14944 13552 4583424 4943872
rdpclip 1736 0 1331 5201920 5185536 124832 114664 5520 5040 2105344 2183168
explorer 2072 0 83569 24793088 23375872 209560 194280 20704 18320 11202560 12865536
jusched 5716 0 1769 6991872 6991872 130320 124592 9264 8640 2850816 2850816
ApacheMonitor 3648 0 977 3858432 3825664 109320 95720 4832 4240 1638400 1679360
VMwareTray 3740 0 1394 5521408 5496832 117352 104184 6672 6080 2478080 2551808
VMwareUser 2820 0 1759 7024640 6995968 119552 107184 7472 7120 4067328 4108288
SciTE 4692 0 3158 9125888 8888320 112560 98560 5280 4880 6103040 6381568
mmc 2812 0 6443 23494656 23470080 205416 203064 14640 13520 12255232 16740352
eclipse 8956 0 205139 184983552 178651136 225112 217320 42560 40720 168902656 174735360
firefox 7672 0 19757 58945536 58462208 174896 171416 33568 27328 47968256 49152000
wrapper 3132 0 985 3973120 3944448 39712 39680 8438 6640 1900544 1941504
java 7456 13 1996365 -1154555904 -1194131456 1061632 865376 2342660 1668320 -1 -1
cmd 8700 0 613 2527232 2527232 33680 33672 3600 3040 2150400 2150400
java 7140 0 9411 26324992 23179264 54408 54408 12928 11120 581910528 586002432
java 228 0 22616 69480448 60051456 54344 54344 10464 10336 593469440 604434432
cmd 5664 0 606 2494464 2494464 38040 38040 7072 6512 2064384 2064384
cpumem 6040 13 3393 4390912 4222976 37280 37200 5360 4960 2260992 2433024
_Total 0 366
Idle 0 366
System 4 1 17019 4857856 258048 0 0 80 80 45056 45056
smss 408 0 1371 1257472 684032 27704 7696 1520 1120 229376 2527232
csrss 456 0 265739 4042752 4005888 206112 205264 10608 10160 1781760 1789952
winlogon 480 0 4223496 15458304 15282176 150992 126576 130272 129120 10924032 11526144
services 528 4 8328 5210112 5144576 66024 63400 14416 12256 2703360 2928640
lsass 540 0 14312 12607488 12558336 105200 100400 30976 25344 11763712 12058624
svchost 716 0 1774 4636672 4608000 57704 53832 8512 5264 1634304 1806336
svchost 788 0 8397 5877760 5804032 68488 66992 35536 33984 2318336 2457600
svchost 852 0 7341 7426048 7352320 113496 100176 21330 16342 6791168 6991872
svchost 888 0 1321 5218304 5197824 57680 57648 10256 8544 2134016 2469888
svchost 904 0 319648 37355520 28160000 227912 206056 52384 38384 20017152 35856384
spoolsv 1036 0 82386 10686464 8921088 149696 106656 12528 10224 5988352 7823360
msdtc 1064 0 1814 7053312 6979584 63264 62656 12752 11424 2785280 2916352
svchost 1260 0 25164 5328896 3710976 77576 49096 5072 4080 1306624 3690496
svchost 1412 0 723 2912256 2908160 35200 35008 4432 3984 1187840 1191936
VMwareService 2008 0 1797 6971392 6897664 119624 118888 11120 6944 3108864 3231744
svchost 432 0 7845 7294976 7151616 98552 96304 12512 11232 3588096 24743936
dllhost 2096 0 2966 10526720 10362880 75568 74464 12128 9984 4001792 4362240
wmiprvse 2736 0 3955 12021760 9736192 73360 70112 8320 6960 4620288 7536640
logon.scr 1112 0 630 2564096 2543616 76648 76080 2960 2960 1187840 1187840
httpd 5744 0 59245 8650752 8650752 83728 66840 128494 100894 4268032 4460544
cmd 6336 0 754 2797568 2797568 33584 33000 3760 3600 2203648 2236416
cmd 6840 0 754 2797568 2797568 33584 33000 3760 3600 2203648 2236416
rotatelogs 8212 0 857 3366912 3366912 66080 51840 4464 4464 1617920 1617920
rotatelogs 3296 0 846 3321856 3321856 66080 51840 4400 4384 1581056 1581056
httpd 7536 0 42975 11481088 11460608 82280 70664 34976 30624 8179712 8241152
cmd 5948 0 753 2793472 2793472 33584 33000 3760 3600 2203648 2236416
rotatelogs 2968 0 863 3391488 3391488 66080 51840 4464 4464 1650688 1650688
cmd 2532 0 753 2793472 2793472 33584 33000 3760 3600 2203648 2236416
rotatelogs 8584 0 863 3391488 3391488 66080 51840 4464 4464 1650688 1650688
wrapper 5800 0 998 4038656 4005888 39992 39960 7846 6960 1929216 1970176
java 7708 0 1873243 161222656 134750208 125392 121616 515910 122640 130805760 157409280
csrss 1520 0 3747 5390336 4505600 108024 100128 9040 6960 2060288 2097152
winlogon 2804 0 4568 11296768 4702208 165832 163496 14944 13552 4583424 4943872
rdpclip 1736 0 1331 5201920 5185536 124832 114664 5520 5040 2105344 2183168
explorer 2072 0 83569 24793088 23375872 209560 194280 20704 18320 11202560 12865536
jusched 5716 0 1769 6991872 6991872 130320 124592 9264 8640 2850816 2850816
ApacheMonitor 3648 0 977 3858432 3825664 109320 95720 4832 4240 1638400 1679360
VMwareTray 3740 0 1394 5521408 5496832 117352 104184 6672 6080 2478080 2551808
VMwareUser 2820 0 1759 7024640 6995968 119552 107184 7472 7120 4067328 4108288
SciTE 4692 0 3158 9125888 8888320 112560 98560 5280 4880 6103040 6381568
mmc 2812 0 6443 23494656 23470080 205416 203064 14640 13520 12255232 16740352
eclipse 8956 0 205139 184983552 178651136 225112 217320 42560 40720 168902656 174735360
firefox 7672 0 19757 58945536 58462208 174896 171416 33568 27328 47968256 49152000
wrapper 3132 0 985 3973120 3944448 39712 39680 8438 6640 1900544 1941504
java 7456 12 1996365 -1154555904 -1194131456 1061632 865376 2342660 1668320 -1 -1
cmd 8700 0 613 2527232 2527232 33680 33672 3600 3040 2150400 2150400
java 7140 0 9411 26324992 23179264 54408 54408 12928 11120 581910528 586002432
java 228 0 22616 69480448 60051456 54344 54344 10464 10336 593469440 604434432
cmd 5664 0 606 2494464 2494464 38040 38040 7072 6512 2064384 2064384
cpumem 6040 14 5567 4395008 4227072 37280 37200 5360 4960 2260992 2433024
_Total 0 369
Idle 0 365
System 4 0 17019 4857856 258048 0 0 80 80 45056 45056
smss 408 0 1371 1257472 684032 27704 7696 1520 1120 229376 2527232
csrss 456 0 265739 4042752 4005888 206112 205264 10608 10160 1781760 1789952
winlogon 480 0 4223496 15458304 15282176 150992 126576 130272 129120 10924032 11526144
services 528 1 8328 5210112 5144576 66024 63400 14416 12256 2703360 2928640
lsass 540 0 14312 12607488 12558336 105200 100400 30976 25344 11763712 12058624
svchost 716 0 1774 4636672 4608000 57704 53832 8512 5264 1634304 1806336
svchost 788 0 8397 5877760 5804032 68488 66992 35536 33984 2318336 2457600
svchost 852 0 7341 7426048 7352320 113496 100176 21330 16342 6791168 6991872
svchost 888 0 1321 5218304 5197824 57680 57648 10256 8544 2134016 2469888
svchost 904 0 319648 37355520 28160000 227912 206056 52384 38384 20017152 35856384
spoolsv 1036 0 82386 10686464 8921088 149696 106656 12528 10224 5988352 7823360
msdtc 1064 0 1814 7053312 6979584 63264 62656 12752 11424 2785280 2916352
svchost 1260 0 25164 5328896 3710976 77576 49096 5072 4080 1306624 3690496
svchost 1412 0 723 2912256 2908160 35200 35008 4432 3984 1187840 1191936
VMwareService 2008 0 1797 6971392 6897664 119624 118888 11120 6944 3108864 3231744
svchost 432 0 7845 7294976 7151616 98552 96304 12512 11232 3588096 24743936
dllhost 2096 0 2966 10526720 10362880 75568 74464 12128 9984 4001792 4362240
wmiprvse 2736 0 3955 12021760 9736192 73360 70112 8320 6960 4620288 7536640
logon.scr 1112 0 630 2564096 2543616 76648 76080 2960 2960 1187840 1187840
httpd 5744 0 59245 8650752 8650752 83728 66840 128494 100894 4268032 4460544
cmd 6336 0 754 2797568 2797568 33584 33000 3760 3600 2203648 2236416
cmd 6840 0 754 2797568 2797568 33584 33000 3760 3600 2203648 2236416
rotatelogs 8212 0 857 3366912 3366912 66080 51840 4464 4464 1617920 1617920
rotatelogs 3296 0 846 3321856 3321856 66080 51840 4400 4384 1581056 1581056
httpd 7536 0 42975 11481088 11460608 82280 70664 34976 30624 8179712 8241152
cmd 5948 0 753 2793472 2793472 33584 33000 3760 3600 2203648 2236416
rotatelogs 2968 0 863 3391488 3391488 66080 51840 4464 4464 1650688 1650688
cmd 2532 0 753 2793472 2793472 33584 33000 3760 3600 2203648 2236416
rotatelogs 8584 0 863 3391488 3391488 66080 51840 4464 4464 1650688 1650688
wrapper 5800 0 998 4038656 4005888 39992 39960 7846 6960 1929216 1970176
java 7708 0 1873243 161222656 134750208 125392 121616 515910 122640 130805760 157409280
csrss 1520 0 3747 5390336 4505600 108024 100128 9040 6960 2060288 2097152
winlogon 2804 0 4568 11296768 4702208 165832 163496 14944 13552 4583424 4943872
rdpclip 1736 0 1331 5201920 5185536 124832 114664 5520 5040 2105344 2183168
explorer 2072 0 83569 24793088 23375872 209560 194280 20704 18320 11202560 12865536
jusched 5716 0 1769 6991872 6991872 130320 124592 9264 8640 2850816 2850816
ApacheMonitor 3648 0 977 3858432 3825664 109320 95720 4832 4240 1638400 1679360
VMwareTray 3740 0 1394 5521408 5496832 117352 104184 6672 6080 2478080 2551808
VMwareUser 2820 0 1759 7024640 6995968 119552 107184 7472 7120 4067328 4108288
SciTE 4692 0 3158 9125888 8888320 112560 98560 5280 4880 6103040 6381568
mmc 2812 0 6443 23494656 23470080 205416 203064 14640 13520 12255232 16740352
eclipse 8956 0 205139 184983552 178651136 225112 217320 42560 40720 168902656 174735360
firefox 7672 0 19757 58945536 58462208 174896 171416 33568 27328 47968256 49152000
wrapper 3132 0 985 3973120 3944448 39712 39680 8438 6640 1900544 1941504
java 7456 15 1996365 -1154555904 -1194131456 1061632 866240 2342660 1670336 -1 -1
cmd 8700 0 613 2527232 2527232 33680 33672 3600 3040 2150400 2150400
java 7140 0 9411 26324992 23179264 54408 54408 12928 11120 581910528 586002432
java 228 0 22617 69480448 60055552 54344 54344 10464 10336 593469440 604434432
cmd 5664 0 606 2494464 2494464 38040 38040 7072 6512 2064384 2064384
cpumem 6040 11 7794 4616192 4448256 47488 47408 6320 5920 2334720 2506752
_Total 0 370
Essa é uma execução da ferramenta. A máquina é um quad core, então acho que a saída quadruplicou para que o uso da CPU de cada núcleo pudesse ser visto para cada processo. Os valores de memória parecem os mesmos. Qual destas colunas devo somar para determinar o total de memória usada? Esta é uma maneira razoável de fazer isso?
Existe uma maneira melhor de determinar a memória livre ou usada na linha de comando do Windows?