This is first attempt to use AliasPieces inastead Pieces with
segments/range loop. So far we were always using Pieces
which are always converted from AliasPieces for easy use.
Side effect is that using NodeID with loop observers is heavy
e.g. we are using maps which behaves slower with NodeIDs.
We are starting with audit observer because it's easy to change
it as in feact it doesn't need access to real NodeID at all. We just
need to reference node in some way and this way is NodeAlias.
Results of BenchmarkRemoteSegment:
name old time/op new time/op delta
RemoteSegment/Cockroach/multiple_segments-8 1.79µs ± 6% 0.03µs ± 4% -98.29% (p=0.008 n=5+5)
name old alloc/op new alloc/op delta
RemoteSegment/Cockroach/multiple_segments-8 0.00B 0.00B ~ (all equal)
name old allocs/op new allocs/op delta
RemoteSegment/Cockroach/multiple_segments-8 0.00 0.00 ~ (all equal)
Change-Id: Ib7fc87e568a4d3a9af27b5e3b644ea68ab6db7aa
This change implements the ranged loop observer to replace the audit
chore that builds the audit queue.
The strategy employed by this change is to use a collector for each
segment range to build separate per-node segment reservoirs that are
then merge them during the join step.
In previous observer migrations, there were only a handful of tests so
the strategy was to duplicate them. In this package, there are dozens
of tests that utilize the chore. To reduce code churn and maintenance
burden until the chore is removed, this change introduces a helper that
runs tests under both the chore and observer, providing a pair of
functions that can be used to pause or run the queueing function.
https://github.com/storj/storj/issues/5232
Change-Id: I8bb4b4e55cf98b1aac9f26307e3a9a355cb3f506
Two things were done to optimize audit observer:
* monik call was removed as we have different way to track it
* no new allocation for audit.Segment struct inside observer
Benchmark against 'main':
name old time/op new time/op delta
RemoteSegment/Cockroach/multiple_segments-8 5.85µs ± 1% 0.74µs ± 4% -87.28% (p=0.008 n=5+5)
name old alloc/op new alloc/op delta
RemoteSegment/Cockroach/multiple_segments-8 2.72kB ± 0% 0.00kB ~ (p=0.079 n=4+5)
name old allocs/op new allocs/op delta
RemoteSegment/Cockroach/multiple_segments-8 50.0 ± 0% 0.0 -100.00% (p=0.008 n=5+5)
Change-Id: Ib973e48782bad4346eee1cd5aee77f0a50f69258
We made optimization for segment loop observers to avoid
heavy monkit initialization on each call. It was applied to very
often executed methods. Unfortunately we used wrong monkit
method to track function times. Instead mon.Task we used
mon.Func().
https://github.com/spacemonkeygo/monkit#how-it-works
Change-Id: I9ca454dbd828c6b43ba09ca75c341991d2fd73a8
Currently the loop handling is heavily related to the metabase rather
than metainfo.
metainfo over time has become related to the "public API" for accessing
the metabase data.
Currently updates monkit.lock, because monkit monitoring does not handle
ScopeNamed correctly. Needs a followup change to monitoring check.
Change-Id: Ie50519991d718dfb872ec9a0176a82e732c97584
Check that the bloom filter creation date is earlier than the
metainfo loop system time used for db scanning.
Change-Id: Ib0f47c124f5651deae0fd7e7996abcdcaac98fb4
