Ook daarover heb ik wat leuke handige info:
(tweak sites kopieeren alles van elkaar, zonder ook maar te begrijpen wat iets doet en of het zin heeft)
Waar het trouwens op neer komt:
Niet kloten met dit soort instellingen, laat ze met rust. Maak je verder ook niet druk over de pagefile, maak de min waarde lekker groot, en max hetzelfde of groter, verder niet. NIET op een ramschijf en NIET uitzetten. Hoe kan iemand het in zijn hoofd halen dat hij het beter weet dan al die programmeurs bij Microsoft, die al 10-tallen jaren met de NTkernel bezig zijn.
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DisablePagingExecutive does little on large-memory systems - most of the pageable code in the OS tends to stay in RAM anyway, even without this setting. Note: It means "disable paging of the executive," i.e. the OS. It doesn't mean disable paging entirely."
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LargeSystemCache is usually not a good thing to do. It sets the maximum size of the system working set (which includes the file system cache) to about 80% of RAM. This means that only about 20% of your RAM is normally available for programs, their data, etc. Usually not what you want. The system will trim the system working set (as it will all working sets) well below the max if necessary, but this will only happen in response to an extreme memory shortage. By that time you are usually already noticing severe slowdowns.
By contrast, if you leave LargeSystemCache at 0, it sets the upper limit of the system working set to about 5% of RAM. The trick is that if you have plenty of memory any working set can be allowed to grow beyond the "max". However, in low memory conditions, such "overextended" working sets are shrunk back to the "max" before more drastic reclamation measures are taken (like shrinking working sets below their max).
In general LargeSystemCache should only be used on servers with an extremely stable workload (almost no program activations or shutdowns once the system is up and running) and upon which the file cache really is the most important use of RAM. A web server is a good candidate. It's exactly the wrong thing for most end-user systems, and for many servers too."
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Voor 26% gewijzigd door
maratropa op 29-09-2003 19:51
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