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Windows: Don't use API for Processor Groups support if there is only 1 CPU group in the system. This can fix slowness issue observed on some PCs with AMD CPUs.

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This commit is contained in:
Mounir IDRASSI
2020-07-01 17:11:07 +02:00
parent 5f04e5abd0
commit 3f587a3629
4 changed files with 86 additions and 41 deletions
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8
src/Driver/Ntdriver.c
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@@ -4491,7 +4491,7 @@ NTSTATUS TCCompleteDiskIrp (PIRP irp, NTSTATUS status, ULONG_PTR information)
}
size_t GetCpuCount ()
size_t GetCpuCount (WORD* pGroupCount)
{
size_t cpuCount = 0;
if (KeQueryActiveGroupCountPtr && KeQueryActiveProcessorCountExPtr)
@@ -4501,6 +4501,9 @@ size_t GetCpuCount ()
{
cpuCount += (size_t) KeQueryActiveProcessorCountExPtr (i);
}
if (pGroupCount)
*pGroupCount = groupCount;
}
else
{
@@ -4514,6 +4517,9 @@ size_t GetCpuCount ()
activeCpuMap >>= 1;
}
if (pGroupCount)
*pGroupCount = 1;
}
if (cpuCount == 0)