[Bug 2016845] Re: ceph should build linked with tcmalloc

[Alan Baghumian]

I went ahead an ran a FIO test with the current 17.2.5 packages against
my home lab Ceph cluster. I'm pasting the results here so we can compare
with 17.2.6 later on.

Some notes:

1. This cluster is only being used by a single OpenStack instance and did not have any I/O activity during the tests.
2. The cluster has 6 nodes, 6 OSD(s), each 300GB for a total raw size of 1.8TB.
3. The network is a 1GBps network shared with the OpenStack cluster.
4. The memory target for OSD(s) is set to 1GB.
5. Each node has 4GB of memory and 2 CPU cores.
6. The tests were executed from inside an OpenStack instance on a Ceph backed volume.

Please see the attachments for the FIO test profile, results and cluster
status.

Direct FIO tests against the pool will follow.

** Attachment added: "FIO Test Profile"
   https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/2016845/+attachment/5677017/+files/lp-2016845-fio-profile

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https://bugs.launchpad.net/bugs/2016845

Title:
  ceph should build linked with tcmalloc

Status in ceph package in Ubuntu:
  Confirmed

Bug description:
  Sometime between 15.2.17 on focal and 17.2.5 on either focal via the
  Yoga UCA or on Jammy the ceph-osd process stopped linking to tcmalloc.
  tcmalloc should continue to be enabled for ceph performance

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