mirror of
https://github.com/ii64/gouring.git
synced 2024-11-21 22:46:22 +01:00
Nugraha
7eedf9754b
There's other adjustment/addition: * Function name CQE/SQE renamed to Cqe/Sqe. * SQ entry union sets value withput util to reduce function complexity, so leaving function budget for another stuff. * UserData has its own type, implement for uint64, uintptr, and unsafe. * TODO: decide what to use `Syscall` or `RawSyscall`. * Exposed `SeenCqe`. * Ignore *.test file extension. * Inline cost tool. Signed-off-by: Nugraha <richiisei@gmail.com>
63 lines
No EOL
1.7 KiB
Python
63 lines
No EOL
1.7 KiB
Python
#!/bin/python3
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import re
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import subprocess
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from io import BytesIO
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from typing import Tuple, List
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from sys import (
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stdout as sys_stdout,
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stderr as sys_stderr
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)
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# https://dave.cheney.net/2020/05/02/mid-stack-inlining-in-go
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gcflags = [
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"-m=2",
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]
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re_cost = re.compile(rb"with cost (\d+) as:")
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re_cost2 = re.compile(rb"cost (\d+) exceeds")
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def main():
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h = subprocess.Popen(
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args=["go","build","-gcflags="+" ".join(gcflags),"."],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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ret: Tuple[str, str] = h.communicate()
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stdout, stderr = ret
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lines: List[bytes] = stderr.split(b"\n")
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inlined_lines: List[bytes] = [line for line in lines if b"inline" in line]
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can_inline: List[Tuple[bytes, int]] = []
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cannot_inline: List[Tuple[bytes, int]] = []
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for line in inlined_lines:
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if b"can inline" in line:
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inline_cost = int(re_cost.findall(line)[0])
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can_inline += [ (line, inline_cost) ]
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elif b"cannot inline" in line:
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cur_cost = 0
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try:
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cur_cost = int(re_cost2.findall(line)[0])
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except: pass
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cannot_inline += [ (line, cur_cost) ]
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else:
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sys_stderr.write(b"[UNK] ")
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sys_stderr.write(line)
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sys_stderr.write(b"\n")
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# sort by cost
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# can_inline = sorted(can_inline, key=lambda v: v[1])
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# cannot_inline = sorted(cannot_inline, key=lambda v: v[1])
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for item in can_inline:
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print( (str(item[1]).encode() +b"\t"+ item[0]) .decode() )
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print("============")
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for item in cannot_inline:
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print( (str(item[1]).encode() +b"\t"+ item[0]) .decode() )
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if __name__ == "__main__":
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main() |