Optimizing memory management part 2
With the entry “IoPageLockLimit” as the REG_DWORD data type in the registry under:
HKEY_LOCAL_MACHINE/SYSTEM/
CurrentControlSet/Control/
Session Manager / Memory Management
the memory to be reserved is specified.
(Important: The three lines above are wrapped for mobile display purposes. This must be read as a single continuous line)
Depending on the built-in memory, a higher value can improve the performance.
This defines the maximum amount of memory that can be used for input / output operations.
Used as a value 0 are specified by default 512 KB of memory reserved.
The following values are usually useful and a quarter of the main memory is reserved for these values.
This can be calculated or checked / adjusted by everyone.
Start the computer: Start / Run >> Enter: calc >> OK, above view on "scientific View"and mark" Dec "...
Sample calculation for 128 MB RAM:
128 x 1024 = 131072: 4 = 32768 -> mark hex = 8000
That would be the hex entry in the value REG_DWORD "IoPageLockLimit"for a reservation of 1/4 of the RAM.
The table below recommends values up to 1 GB of RAM memory.
(Opinions also differ on this "but it doesn't matter", it can / should be discussed in the forum).
| Own RAM in MB |
128 | 256 | 512 | 768 | 1024 |
| IoPageLockLimit as a hex entry | 8000 | 10000 | 20000 | 30000 | 40000 |
| IoPageLockLimit as a Dec entry | 32768 | 65536 | 131072 | 196608 | 2626144 |
| Reserved memory in MB | 32 | 64 | 128 | 192 | 256 |
In order for these settings to be used, the value must be set
"LargeSystemCache" on 2 and under...
HKEY_LOCAL_MACHINE/SYSTEM/
CurrentControlSet/Services/
lanmanserver/parameters
... the value REG_DWORD "Size" on 3 be set.
(Important: The three lines above are wrapped for mobile display purposes. This must be read as a single continuous line)
Only then will all I/O (In-Output) operations use this increased memory and "program timeouts" will be reduced/disabled, which could occur at the default value of Windows due to the bottleneck of 512 KB.
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© Copyright Michael Hille
Warning:
Using Registry Editor or its tips incorrectly can cause serious system problems that may require you to reinstall your operating system. Tampering with the registry files and using the tips is at your own risk.