Alternatives to Jemalloc about mold

[rui314]

Ah, thank you for your advice! I tried mimalloc, and it is indeed slightly better than jemalloc. mold runs a few percent faster with mimalloc.

I wanted to give tcmalloc a shot, but it looks like it can't be built with make or cmake, so I'll leave it alone for now.

[rui314]

@marxin Please build mold with make USE_MIMALLOC=0

[pepsiman]

The gperftools version of tcmalloc builds with cmake. https://github.com/gperftools/gperftools

[lazerl0rd]

Ah, thank you for your advice! I tried mimalloc, and it is indeed slightly better than jemalloc. mold runs a few percent faster with mimalloc.

I wanted to give tcmalloc a shot, but it looks like it can't be built with make or cmake, so I'll leave it alone for now.

As @pepsiman mentioned above, you can build TCMalloc with cmake from the gperftools repository. However, if Microsoft's benchmarks (as well as my preliminary benchmarks) are anything to go by then mimalloc should outperform TCMalloc.

I'm sure you'll compare them both to be sure anyways, and hopefully mold will end up even faster (it's already pretty darn fast).

[rui314]

I tried tcmalloc, and it looks like tcmalloc is the slowest among tcmalloc, tbbmalloc, jemalloc and mimalloc. Here is the chromium link time:

mimalloc: 1.83s
jemalloc: 1.89s
tbbmalloc: 1.96s
tcmalloc: 2.13s
glibc malloc: 3.10s

It is very interesting to see that swapping malloc makes such a huge performance difference.

[lazerl0rd]

I tried tcmalloc, and it looks like tcmalloc is the slowest among tcmalloc, tbbmalloc, jemalloc and mimalloc. Here is the chromium link time:

mimalloc: 1.83s
jemalloc: 1.89s
tbbmalloc: 1.96s
tcmalloc: 2.13s
glibc malloc: 3.10s

It is very interesting to see that swapping malloc makes such a huge performance difference.

It is also interesting to see TCMalloc lag behind so much, as Google's claims seemed to suggest it would be at least equivalent to jemalloc - if not faster. However, it's good to see mimalloc live up to Microsoft's claims. Thanks for testing them all.

[marxin]

Btw. is there any configure option to disable mimalloc and use the default glibc?