Re: [RFC PATCH v1] tools/mm: Add thpmaps script to dump THP usage info

William Kucharski
2024-01-03T08:08:53Z

> On Jan 2, 2024, at 23:44, Barry Song <21cnbao@gmail.com> wrote:
>
> Hi Ryan,
>
> I ran a couple of test cases with different parameters, it seems to
> work correctly.
> just i don't understand the below, what is the meaning of 000000ce at
> the beginning of
> each line?

It's the pid; 0xce is the specified pid, 206.

Perhaps the pid should be printed in decimal?

-- William Kucharski

> /thpmaps --pid 206 --cont 64K
> 000000ce 0000aaaadbb20000-0000aaaadbb21000 r-xp 00000000 fe:00
> 00426969 /root/a.out
> 000000ce 0000aaaadbb3f000-0000aaaadbb40000 r--p 0000f000 fe:00
> 00426969 /root/a.out
> 000000ce 0000aaaadbb40000-0000aaaadbb41000 rw-p 00010000 fe:00
> 00426969 /root/a.out
> 000000ce 0000ffff702c0000-0000ffffb02c0000 rw-p 00000000 00:00 00000000
> anon-thp-aligned-64kB: 473920 kB (100%)
> anon-cont-aligned-64kB: 473920 kB (100%)
> 000000ce 0000ffffb02c0000-0000ffffb044c000 r-xp 00000000 fe:00
> 00395429 /usr/lib/aarch64-linux-gnu/libc.so.6
> 000000ce 0000ffffb044c000-0000ffffb045d000 ---p 0018c000 fe:00
> 00395429 /usr/lib/aarch64-linux-gnu/libc.so.6
> 000000ce 0000ffffb045d000-0000ffffb0460000 r--p 0018d000 fe:00
> 00395429 /usr/lib/aarch64-linux-gnu/libc.so.6
> 000000ce 0000ffffb0460000-0000ffffb0462000 rw-p 00190000 fe:00
> 00395429 /usr/lib/aarch64-linux-gnu/libc.so.6
> 000000ce 0000ffffb0462000-0000ffffb046f000 rw-p 00000000 00:00 00000000
> 000000ce 0000ffffb0477000-0000ffffb049d000 r-xp 00000000 fe:00
> 00393893 /usr/lib/aarch64-linux-gnu/ld-linux-aarch64.so.1
> 000000ce 0000ffffb04b0000-0000ffffb04b2000 rw-p 00000000 00:00 00000000
> 000000ce 0000ffffb04b2000-0000ffffb04b4000 r--p 00000000 00:00 00000000 [vvar]
> 000000ce 0000ffffb04b4000-0000ffffb04b5000 r-xp 00000000 00:00 00000000 [vdso]
> 000000ce 0000ffffb04b5000-0000ffffb04b7000 r--p 0002e000 fe:00
> 00393893 /usr/lib/aarch64-linux-gnu/ld-linux-aarch64.so.1
> 000000ce 0000ffffb04b7000-0000ffffb04b9000 rw-p 00030000 fe:00
> 00393893 /usr/lib/aarch64-linux-gnu/ld-linux-aarch64.so.1
> 000000ce 0000ffffdaba4000-0000ffffdabc5000 rw-p 00000000 00:00 00000000 [stack]