| Issue |
132020
|
| Summary |
Can `-fmemory-profile-use` be used together with `-fmemory-profile`?
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
zcfh
|
## Background
I am currently trying to use memprof to optimize my program, but the test did not find obvious performance gains. **I now hope to develop a tool to observe whether the optimization is really effective.**
## Imagination
My idea is to use memory-profile and memory-profile-use at the same time, so that the memory access after memprof optimization can be collected. Then do some post-processing on this information to determine whether the correct clone is made. Furthermore, can a heat map be drawn based on the memory access situation, similar to BOLT.
## Question
1. I made the first attempt and found that `-fmemory-profile` and `-fmemory-profile-use` cannot be used at the same time. Is this not allowed by design?
2. **Are there other observation tools?** I looked through some options and only found `memprof-export-to-dot`, but this can only prove whether the clone is done, and cannot reflect whether the clone result is good enough.
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