Optimise memory deallocation for stable log entries

[Aditya-Sood]

Increment: Modify unstable.shrinkEntriesArray() to better account for underlying-array utilisation Fixes #71

[Aditya-Sood]

hi @pavelkalinnikov, could you please review the PR? if it looks good then I'll get started on the "MemoryStorage.Compact method" as well that you had mentioned in the original issue

[Aditya-Sood]

hi @pavelkalinnikov, does the PR need any changes?

[Aditya-Sood]

hi @pavelkalinnikov, could you please review the PR?

[pav-kv]

@Aditya-Sood Sorry, been super busy recently. Will review this PR this week.

[Aditya-Sood]

hi @pavelkalinnikov, could you please share your thoughts on this approach - https://github.com/etcd-io/raft/pull/96#discussion_r1327965688

[Aditya-Sood]

hi @ahrtr, would you be able to weigh-in on https://github.com/etcd-io/raft/pull/96#discussion_r1327965688?

[Aditya-Sood]

hi @mitake, @serathius, @ptabor, @spzala would you be able to share your opinion on https://github.com/etcd-io/raft/pull/96#discussion_r1327965688? I can start working on the change then, this PR has been open for 2.5 months now

[Aditya-Sood]

hi @pav-kv

[serathius]

QQ for any optimisation, do we have a benchmark that confirms the improvement?

[Aditya-Sood]

hi @serathius, no I haven't implemented the proposed change yet if you don't foresee any immediate issues with this approach then I can implement it and look into benchmarking?