Front End Latency

Front End Latency

Bild des Benutzers Charlie Hewett (Intel)

TITLE: Front End Latency

ISSUE_NAME: Frontend^FE_latency

DESCRIPTION:

Cycles that 0 uops were delivered from the front end when asked to deliver.  

RELEVANCE:

When the back end is requesting uops and the front end cannot deliver them, this can indicate a front end limitation which is affecting performance.  Looking at the uop source and other Frontend metrics such as Frontend^FE_latency^L1IorTLB and Frontend^FE_latency^DSBtoMITE to determine why 0 uops were delivered.

EXAMPLE:

SOLUTION:

RELATED_SOURCES:

NOTES:

EQUATION:  IDQ_UOPS_NOT_DELIVERED.CYCLES_0_UOPS_DELIV.CORE / CPU_CLK_UNHALTED.THREAD

1 Beitrag / 0 neu
Nähere Informationen zur Compiler-Optimierung finden Sie in unserem Optimierungshinweis.