ma rado bi ja podigla na 940, cak sta vise kupila bi novi comp ali, ovaj mora jos malo izdrzati dok se ne oparimchombe wrote: dizi ti to na 940
Virtual memory very low
Moderator: Benq
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Toozla
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#28
How big should the page file be?
There is a great deal of myth surrounding this question. Two big fallacies are:
The file should be a fixed size so that it does not get fragmented, with minimum and maximum set the same
The file should be 2.5 times the size of RAM (or some other multiple)
Both are wrong in a modern, single-user system. A machine using Fast User switching is a special case, discussed below.)
Windows will expand a file that starts out too small and may shrink it again if it is larger than necessary, so it pays to set the initial size as large enough to handle the normal needs of your system to avoid constant changes of size. This will give all the benefits claimed for a ‘fixed’ page file. But no restriction should be placed on its further growth. As well as providing for contingencies, like unexpectedly opening a very large file, in XP this potential file space can be used as a place to assign those virtual memory pages that programs have asked for, but never brought into use. Until they get used — probably never — the file need not come into being. There is no downside in having potential space available.
For any given workload, the total need for virtual addresses will not depend on the size of RAM alone. It will be met by the sum of RAM and the page file. Therefore in a machine with small RAM, the extra amount represented by page file will need to be larger — not smaller — than that needed in a machine with big RAM. Unfortunately the default settings for system management of the file have not caught up with this: it will assign an initial amount that may be quite excessive for a large machine, while at the same leaving too little for contingencies on a small one.
How big a file will turn out to be needed depends very much on your work-load. Simple word processing and e-mail may need very little — large graphics and movie making may need a great deal. For a general workload, with only small dumps provided for (see note to ‘Should the file be left on Drive C:?’ above), it is suggested that a sensible start point for the initial size would be the greater of (a) 100 MB or (b) enough to bring RAM plus file to about 500 MB. EXAMPLE: Set the Initial page file size to 400 MB on a computer with 128 MB RAM; 250 on a 256 MB computer; or 100 MB for larger sizes.
But have a high Maximum size — 700 or 800 MB or even more if there is plenty of disk space. Having this high will do no harm. Then if you find the klix pagefile.sys gets larger (as seen in Explorer), adjust the initial size up accordingly. Such a need for more than a minimal initial page file is the best indicator of benefit from adding RAM: if an initial size set, for a trial, at 50MB never grows, then more RAM will do nothing for the machine's performance.
Bill James MS MVP has a convenient tool, ‘WinXP-2K_Pagefile’, for monitoring the klix usage of the Page file, which can be downloaded here. A compiled Visual Basic version is available from Doug Knox's site which may be more convenient for some users. The value seen for ‘Peak Usage’ over several days makes a good guide for setting the Initial size economically.
Note that these aspects of Windows XP have changed significantly from earlier Windows NT versions, and practices that have been common there may no longer be appropriate. Also, the ‘PF Usage’ (Page File in Use) measurement in Task Manager | Performance for ‘Page File in Use’ include those potential uses by pages that have not been taken up. It makes a good indicator of the adequacy of the ‘Maximum’ size setting, but not for the ‘Initial’ one, let alone for any need for more RAM.
There is a great deal of myth surrounding this question. Two big fallacies are:
The file should be a fixed size so that it does not get fragmented, with minimum and maximum set the same
The file should be 2.5 times the size of RAM (or some other multiple)
Both are wrong in a modern, single-user system. A machine using Fast User switching is a special case, discussed below.)
Windows will expand a file that starts out too small and may shrink it again if it is larger than necessary, so it pays to set the initial size as large enough to handle the normal needs of your system to avoid constant changes of size. This will give all the benefits claimed for a ‘fixed’ page file. But no restriction should be placed on its further growth. As well as providing for contingencies, like unexpectedly opening a very large file, in XP this potential file space can be used as a place to assign those virtual memory pages that programs have asked for, but never brought into use. Until they get used — probably never — the file need not come into being. There is no downside in having potential space available.
For any given workload, the total need for virtual addresses will not depend on the size of RAM alone. It will be met by the sum of RAM and the page file. Therefore in a machine with small RAM, the extra amount represented by page file will need to be larger — not smaller — than that needed in a machine with big RAM. Unfortunately the default settings for system management of the file have not caught up with this: it will assign an initial amount that may be quite excessive for a large machine, while at the same leaving too little for contingencies on a small one.
How big a file will turn out to be needed depends very much on your work-load. Simple word processing and e-mail may need very little — large graphics and movie making may need a great deal. For a general workload, with only small dumps provided for (see note to ‘Should the file be left on Drive C:?’ above), it is suggested that a sensible start point for the initial size would be the greater of (a) 100 MB or (b) enough to bring RAM plus file to about 500 MB. EXAMPLE: Set the Initial page file size to 400 MB on a computer with 128 MB RAM; 250 on a 256 MB computer; or 100 MB for larger sizes.
But have a high Maximum size — 700 or 800 MB or even more if there is plenty of disk space. Having this high will do no harm. Then if you find the klix pagefile.sys gets larger (as seen in Explorer), adjust the initial size up accordingly. Such a need for more than a minimal initial page file is the best indicator of benefit from adding RAM: if an initial size set, for a trial, at 50MB never grows, then more RAM will do nothing for the machine's performance.
Bill James MS MVP has a convenient tool, ‘WinXP-2K_Pagefile’, for monitoring the klix usage of the Page file, which can be downloaded here. A compiled Visual Basic version is available from Doug Knox's site which may be more convenient for some users. The value seen for ‘Peak Usage’ over several days makes a good guide for setting the Initial size economically.
Note that these aspects of Windows XP have changed significantly from earlier Windows NT versions, and practices that have been common there may no longer be appropriate. Also, the ‘PF Usage’ (Page File in Use) measurement in Task Manager | Performance for ‘Page File in Use’ include those potential uses by pages that have not been taken up. It makes a good indicator of the adequacy of the ‘Maximum’ size setting, but not for the ‘Initial’ one, let alone for any need for more RAM.
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meho_puzic
- Posts: 69
- Joined: 22/04/2004 18:29
#34
Vidim da si neki priuceni kompjuterski strucnjak. Da ti ja objasnim narodnim jezikom o cemu se tu radi. Dzaba ti citiranje stranica kad ni sam neznas sta tamo tacno pise i naravno nemas pojma kako kompjuter u stvari radi. Virtualna memorija je jedno obicno zlo koje je izmisljeno da se nadoknadi nedostatak RAM memorije u kompjuterima 90tih godina(skupa memorija). U stvari samo pravi kontraefekat zato sto je kompjuter mnogo sporiji kad koristi virtualnu memoriju. Konkretno brizina transfera u memoriji je recimo 3.2G/s a brzinia transfera HD je oko 100Mb/s i to teoriski. Ja jos nisam vidio HD transfer koji ide tom brzinom. Opet isto pitanje, kakve veze ima povecavanje Virtualne memorije sa backupom? Virtualna memorija i onako nemoze da se siri vise od onoga sto je slobodno na disku. Ako stavis 0 za vritualnu memoriju nece uzrokovati da se kompjuter ne startuje.
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meho_puzic
- Posts: 69
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#35
Mislim da ovde nisu cista posla. Microsoft anti spyware ne radi na WinNT. A ovi sto ti kazu da povecas virtual memory, samo ti jamu kopaju. Ocisti kompjuter i onda fino otidji i kupi sebi 512M memorije i neces imati problema. Ja jos nisam vidio PC koji koristi preko 512M memorije bez obzira sta radi. Jedino ako otvoris 300 programa onda mozda i popunis 512M i mozda ce ti onda zatrebati virtualna memorija.
zensko wrote:Win NTmeho_puzic wrote:Koji Windows imas?
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Toozla
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#36
procitaj sta sam postirao....naci ces objasnjenje za sve o cemu pises...meho_puzic wrote:Vidim da si neki priuceni kompjuterski strucnjak. Da ti ja objasnim narodnim jezikom o cemu se tu radi.
...ne priuceni strucnjak sto objasnjava narodnim jezikom....
Dzaba ti citiranje stranica kad ni sam neznas sta tamo tacno pise i naravno nemas pojma kako kompjuter u stvari radi. Virtualna memorija je jedno obicno zlo koje je izmisljeno da se nadoknadi nedostatak RAM memorije u kompjuterima 90tih godina(skupa memorija). U stvari samo pravi kontraefekat zato sto je kompjuter mnogo sporiji kad koristi virtualnu memoriju. Konkretno brizina transfera u memoriji je recimo 3.2G/s a brzinia transfera HD je oko 100Mb/s i to teoriski. Ja jos nisam vidio HD transfer koji ide tom brzinom. Opet isto pitanje, kakve veze ima povecavanje Virtualne memorije sa backupom? Virtualna memorija i onako nemoze da se siri vise od onoga sto je slobodno na disku. Ako stavis 0 za vritualnu memoriju nece uzrokovati da se kompjuter ne startuje.
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Toozla
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#41
...ozbiljno, ovo ti je drzi vodu dok majstori odu....zensko wrote:@Toozla, ukratko..
na koliko da ja podesim te vrijednosti?
Format C:....sve iz pocetka....ukljucujuci antivirus i firewall izmedju kompjutera i interneta...to je nekih 3-4 sata posla...zavisi od extra software-a koji koristis...
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zensko
- Posts: 1705
- Joined: 03/04/2002 00:00
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#42
ma zoom, ipak sam ja zenskozoom66 wrote:aj giv ap....zensko wrote:meho radi, kako ne znam..
a gdje mogu pogledati koliko imam ram memorije? bojim se da su me pokrali
desni klik my computer -> properties i tu mi pod general pise
130.528KB RAM? je l' to?
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meho_puzic
- Posts: 69
- Joined: 22/04/2004 18:29
#45
Dzaba ti je da citiras stranice kad neznas kako komjuter radi. Samo da ti napomenem da nisam priuceni strucnjak i da imam diplomu, i ono sto sam napisao, napisao sam da narod shvati da sto vise virtualne memorije to sporiji kompjuter. A ti i dalje nastavi da citiras nesto o cemu nemas blage veze. Jer da imas imalo veze znao bi ono sto ja pokusavam da ti objasnim. Isto tako trebao bi da znas da je jedna prica kad imas 1G memorije i stavis jos 1G virtualne memorije i kad imas 128MB memorije i stavis 1G virtualne memorije.
Toozla wrote:procitaj sta sam postirao....naci ces objasnjenje za sve o cemu pises... :Pmeho_puzic wrote:Vidim da si neki priuceni kompjuterski strucnjak. Da ti ja objasnim narodnim jezikom o cemu se tu radi.
:lol: :lol: :lol:
...ne priuceni strucnjak sto objasnjava narodnim jezikom....
Dzaba ti citiranje stranica kad ni sam neznas sta tamo tacno pise i naravno nemas pojma kako kompjuter u stvari radi. Virtualna memorija je jedno obicno zlo koje je izmisljeno da se nadoknadi nedostatak RAM memorije u kompjuterima 90tih godina(skupa memorija). U stvari samo pravi kontraefekat zato sto je kompjuter mnogo sporiji kad koristi virtualnu memoriju. Konkretno brizina transfera u memoriji je recimo 3.2G/s a brzinia transfera HD je oko 100Mb/s i to teoriski. Ja jos nisam vidio HD transfer koji ide tom brzinom. Opet isto pitanje, kakve veze ima povecavanje Virtualne memorije sa backupom? Virtualna memorija i onako nemoze da se siri vise od onoga sto je slobodno na disku. Ako stavis 0 za vritualnu memoriju nece uzrokovati da se kompjuter ne startuje.
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Truba
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#49
skoro uvijek upali... komp bude kao novzensko wrote:ali definitivno trebam format c:
my comp => desnim klikom i odmah ce ti se pojaviti brojzensko wrote: i provjeriti da li ima te memorije od 512 u compu
pa valjda ima pravnika na forumuzensko wrote: a onda ćeš tražiti advokata na novom topiku
:D:D-
meho_puzic
- Posts: 69
- Joined: 22/04/2004 18:29
#50
Ma ja, nek napravi backup virutalne memorije pa nek onda proba da je poveca
zoom66 wrote:zenskice, poslushaj toozlu...;)