ConfigureL2IPMCs

  • Article

Configures performance counters inside the L2 caches.

Syntax

HRESULT ConfigureL2IPMCs(  
         unsigned int eventIndex10,  
         unsigned int eventIndex11,  
         unsigned int eventIndex12,  
         unsigned int eventIndex13  
)

Parameters

eventIndex10   
Type: unsigned int

Index of the event to count.

eventIndex11   
Type: unsigned int

Index of the event to count.

eventIndex12   
Type: unsigned int

Index of the event to count.

eventIndex13   
Type: unsigned int

Index of the event to count.

Return value

Type: HRESULT

Success or error code.

Code Description
S_OK Success.
E_INVALIDARG One or more of the indexes is out of range.
E_ACCESS_DENIED Access to the driver is denied.

Remarks

There are two L2 caches and each L2 cache has 4 performance counters which can count events.
ConfigureL2IPMCs configures the events of both L2s to be the same.
The first L2 is tied to cores 0-3. The second is tied to cores 4-7. Events for a specific L2 must be read from a core tired to the specific L2.
L2 transactions are 64 bytes.

Index Event Description
0 Reserved
1 L2MissICFill The number of IC requests that miss the L2
2 L2MissDCFill The number of DC requests that miss the L2
3 L2MissPrefetchFill The number of prefetch requests that miss the L2
4 L2MissAll The total number of L2 Misses
5 L2Writeback The number of L2 clean and dirty writebacks
6 L2CleanWriteback The number of L2 clean writebacks
7 L2Fill The number of L2 Fills
8 L2FillWriteback The total number of L2 fills and writebacks

Requirements

Header: pix3.h

Library: pixevt.lib

Supported platforms: Xbox One family consoles and Xbox Series consoles

See also

GetPMCValue
ConfigurePMCs
ConfigureNBPMCs
PIX3 on Xbox
PIX (NDA topic)