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| Title: | Windows NT |
| Notice: | See note 15.0 for HCL location |
| Moderator: | TARKIN::LIN .com::FOLEY |
|
| Created: | Thu Oct 31 1991 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 6086 |
| Total number of notes: | 31449 |
5934.0. "Virtual memory "free page goal" parameter?" by KZIN::WOOD_J ([email protected]) Fri Apr 18 1997 00:49
I've been comparing the performance of an application on Windows NT v4 Alpha
and Windows NT v4 Intel systems (-native compiled versions on both).
Using Performance Monitor I plot "Memory - Available Bytes". On Alpha this
tends to be ~8,000,000 bytes, whereas on Intel it is ~4,000,000 bytes. Both
systems have 64 MB of RAM, and there is some paging evident on both systems
(-but more so on Alpha).
I was curious why Alpha seemed to have a "free memory goal" of 8 MB compared
to Intel's goal of 4MB. A colleague suggested that maybe if there is such
an NT parameter as "free memory goal", that it is actually a number of hardware
pages - e.g. 1,000 pages.
Does anyone know if there is such a parameter in the Windows NT virtual memory?
And if so, is it tune-able (i.e. could I set Alpha & Intel to have the same
free memory goal in terms of MBytes) ?
Thanks,
John
| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 5934.1 | | POBOXA::COMMO | I'll find no bug before its time! | Tue Apr 22 1997 07:11 | 10 |
| >>I was curious why Alpha seemed to have a "free memory goal" of 8 MB compared
>>to Intel's goal of 4MB. A colleague suggested that maybe if there is such
>>an NT parameter as "free memory goal", that it is actually a number of hardware
>>pages - e.g. 1,000 pages.
*If* it is page based (I'm not sure) than it would make sense since
X86 pages are 4K and Alpha pages are 8K.
-norm
|