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[bug #18502] Suboptimal cache configuration for IA-32 processors
From: |
Barry deFreese |
Subject: |
[bug #18502] Suboptimal cache configuration for IA-32 processors |
Date: |
Thu, 14 Dec 2006 02:03:10 +0000 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0 |
Follow-up Comment #2, bug #18502 (project hurd):
OK, I built gnumach with the following in model_dep.c:
set_cr0((get_cr0() | CR0_PG | CR0_WP) & ~(CR0_CD | CR0_NW));
And I got worse performance:
0m0.040s 0m0.130s
0m0.000s 0m0.000s
Booted back to normal gnumach:
0m0.010s 0m0.020s
0m0.000s 0m0.000s
That is just from running times on a little C program that counts to
1000000000, so it's obviously not scientific.
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- [bug #18502] Suboptimal cache configuration for IA-32 processors, Richard Braun, 2006/12/10
- [bug #18502] Suboptimal cache configuration for IA-32 processors, Richard Braun, 2006/12/10
- [bug #18502] Suboptimal cache configuration for IA-32 processors,
Barry deFreese <=
- Re: [bug #18502] Suboptimal cache configuration for IA-32 processors, Samuel Thibault, 2006/12/14
- Re: [bug #18502] Suboptimal cache configuration for IA-32 processors, Barry deFreese, 2006/12/14
- Re: [bug #18502] Suboptimal cache configuration for IA-32 processors, Samuel Thibault, 2006/12/15
- Re: [bug #18502] Suboptimal cache configuration for IA-32 processors, Barry deFreese, 2006/12/15
- Re: [bug #18502] Suboptimal cache configuration for IA-32 processors, Kenneth Østby, 2006/12/15
- Re: [bug #18502] Suboptimal cache configuration for IA-32 processors, Samuel Thibault, 2006/12/15