Xmir.toPhi method takes unreasonable amount of time

[volodya-lombrozo]

Xmir.toPhi method takes unreasonable amount of time to transform XMIR files to PHI expressions.

The most problematic line is here:

eo/eo-parser/src/main/java/org/eolang/parser/Xmir.java

Line 240 in d063ff7

return new Xnav(new Xsline(train).pass(this.xml).inner())

Particularly new Xsline(train).pass(this.xml).

Here is profiling results:

flamegraph-phi-unphi-90391.html.txt

[maxonfjvipon]

@yegor256 let's make a new release with tag 0.51.3

[yegor256]

@rultor release, tag is 0.51.3

[rultor]

@rultor release, tag is 0.51.3

@yegor256 OK, I will release it now. Please check the progress here.

[rultor]

@rultor release, tag is 0.51.3

@yegor256 Done! FYI, the full log is here (took me 9min).

[maxonfjvipon]

@volodya-lombrozo in the new release we removed StUnhex from Xmir.toPhi. In theory this converting should be faster now, please try a new version and let me know if it helped

[volodya-lombrozo]

@maxonfjvipon I've repeated profiling on a small test and it works faster, indeed. Here are results:

flamegraph-phi-unphi-39548.html.txt

As you might see we have the following statistics:

Xmir.toPhi takes ~ 8.26% of execution time
Phi.unphi takes ~ 12.67%
Assembler.assemble ~ 1.36% (jeo)
Disassembler.disassemble ~ 3.64% (jeo).

They are pretty good numbers.

However, this test works only with 6 small classes. I'll try to profile more comprehensive example.

[volodya-lombrozo]

@maxonfjvipon I've tried to run profiling on large number of files and immediately got the error: #3916

It's kinda blocker