wangfenjin commented on issue #2170:
URL: https://github.com/apache/arrow-rs/issues/2170#issuecomment-1197547092
I tried the tools, here is the output from `summarize` tool, the
`LLVM_module_codegen_emit_obj` takes most of the time.
```
+--------------------------------------------------+-----------+-----------------+----------+------------+---------------------------------+
| Item | Self time | % of total
time | Time | Item count | Incremental result hashing time |
+--------------------------------------------------+-----------+-----------------+----------+------------+---------------------------------+
| LLVM_module_codegen_emit_obj | 88.00s | 50.101
| 88.00s | 256 | 0.00ns |
+--------------------------------------------------+-----------+-----------------+----------+------------+---------------------------------+
| LLVM_passes | 20.61s | 11.734
| 20.61s | 1 | 0.00ns |
+--------------------------------------------------+-----------+-----------------+----------+------------+---------------------------------+
| self_profile_alloc_query_strings | 16.32s | 9.294
| 16.33s | 1 | 0.00ns |
+--------------------------------------------------+-----------+-----------------+----------+------------+---------------------------------+
| codegen_module | 15.73s | 8.955
| 20.98s | 256 | 0.00ns |
+--------------------------------------------------+-----------+-----------------+----------+------------+---------------------------------+
```
Honestly I totally have no idea what's it about. And the file generated by
`crox` is too large to processed by my mac...
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