On Sat, Oct 21, 2023 at 1:12 AM Andi Kleen <ak@xxxxxxxxxxxxxxx> wrote: > > A common cause of binary code bloat is excessive inlining. Traditional > tools (like nm --size-sort -t d) don't address that directly because > they only see the final functions, but don't know about inlines. > > This patch adds inline-account that makes it easy to track that down > by accounting code bytes to all functions visible in the debug information, > as well as code lines. > > Here are some examples: > > Show all inlines that increase code size by >1K in the core scheduler: > > $ inline-account.py --min-bytes=1000 kernel/sched/core.o How to use this tool? I did not get any output. masahiro@zoe:~/workspace/linux-kbuild(a)$ ./scripts/inline-account.py --min-bytes=1000 kernel/sched/core.o Total code bytes seen 0 Code bytes by functions: Function Total Avg Num Code bytes by nearby source line blocks: prefix Line Total masahiro@zoe:~/workspace/linux-kbuild(a)$ ./scripts/inline-account.py kernel/sched/core.o Total code bytes seen 0 Code bytes by functions: Function Total Avg Num Code bytes by nearby source line blocks: prefix Line Total masahiro@zoe:~/workspace/linux-kbuild(a)$ ./scripts/inline-account.py lib/maple_tree.o Total code bytes seen 0 Code bytes by functions: Function Total Avg Num Code bytes by nearby source line blocks: prefix Line Total I do not think this patch is mature enough regarding the coding style. Please polish the code. -- Best Regards Masahiro Yamada
