Hi Casey,

For standard ceph packages, are they built with gold or lld linker, instead of the GNU linker? I found that if gold is used, it doesn't suffer this problem of ignoring tcmalloc.

Thanks,
Yixin

On Friday, October 20, 2023 at 02:30:15 p.m. EDT, Casey Bodley <cbodley@redhat.com> wrote:


the cmake variable ALLOCATOR can be used to request a specific
library: https://github.com/ceph/ceph/blob/f080406/CMakeLists.txt#L376-L420

rgw and other ceph binaries refer to ALLOC_LIBS to add that link dependency

On Fri, Oct 20, 2023 at 2:20 PM Casey Bodley <cbodley@redhat.com> wrote:
>
> On Fri, Oct 20, 2023 at 1:54 PM Yixin Jin <yjin77@yahoo.ca> wrote:
> >
> > Hi folks,
> >
> > How could I make rgw built with tcmalloc/jemalloc? I had tcmalloc installed. Although build.ninja has libtcmalloc.so listed for bin/radosgw, it is still using libc’s malloc. Then I had jemalloc installed and the result is the same. What is the proper step to make rgw built with tcmalloc/jemalloc?
>
> how can you tell that it's still using libc?
>
> $ ldd bin/radosgw | grep tcmalloc
>        libtcmalloc.so.4 => /lib64/libtcmalloc.so.4 (0x00007f0bd3000000)
>
> >
> > Thanks
> > Yixin
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