Memory Latency

Metric Description

This metric represents a fraction of cycles during which an application could be stalled due to the latency of the main memory (DRAM). This metric does not aggregate requests from other threads/cores/sockets (see Uncore counters for that). Consider optimizing data layout or using Software Prefetches (through the compiler).

Possible Issues

This metric represents a fraction of cycles during which an application could be stalled due to the latency of the main memory (DRAM).

Tips

Improve data accesses or interleave them with compute using such possible techniques as data layout re-structuring or software prefetches (through the compiler).

For more complete information about compiler optimizations, see our Optimization Notice.
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