Nadav Har'El e344f74858
Merge 'logalloc: improve background reclaim shares management' from Avi Kivity ...
The log structured allocator's background reclaimer tries to
allocate CPU power proportional to memory demand, but a
bug made that not happen. Fix the bug, add some logging,
and future-proof the timer. Also, harden the test against
overcommitted test machines.
Fixes #8234 .
Test: logalloc_test(dev), 20 concurrent runs on 2 cores (1 hyperthread each)
Closes #8281
* github.com:scylladb/scylla:
test: logalloc_test: harden background reclain test against cpu overcommit
logalloc: background reclaim: use default scheduling group for adjusting shares
logalloc: background reclaim: log shares adjustment under trace level
logalloc: background reclaim: fix shares not updated by periodic timer
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e344f74858