kv,sql,storage: avoid various allocs

[tbg]

$ benchdiff --old lastmerge  ./pkg/sql/tests -b -r 'Sysbench/SQL/3node/oltp_write_only' -d 1000x -c 20
test binaries already exist for 9354770: Merge #137344
test binaries already exist for 1b46187: server: remove alloc in setupSpanForIncomingRPC

  pkg=1/1 iter=20/20 cockroachdb/cockroach/pkg/sql/tests -

name                                   old time/op    new time/op    delta
Sysbench/SQL/3node/oltp_write_only-24    4.42ms ± 3%    4.43ms ± 3%    ~     (p=0.687 n=19+20)

name                                   old alloc/op   new alloc/op   delta
Sysbench/SQL/3node/oltp_write_only-24     956kB ± 3%     954kB ± 3%    ~     (p=0.134 n=18+19)

name                                   old allocs/op  new allocs/op  delta
Sysbench/SQL/3node/oltp_write_only-24     6.17k ± 1%     6.09k ± 1%  -1.31%  (p=0.000 n=16+16)

• kvserver: avoid an alloc
• kvserver: step 1 in reducing abandon() alloc
• kvserver: step 2 in removing abandon() alloc
• kvserver: avoid allocation due to abandon closure in hot path
• kvserver: avoid Veventf-related allocs
• kvserverbase: make tracing alloc in hot path conditional
• sql: avoid ctx moving to heap in dispatchToExecutionEngine
• sql: avoid some vevent-related allocs
• storage: pool unlimited standalone BoundAccounts
• mvcc: remove minor allocation in MVCCGarbageCollect
• server: remove alloc in setupSpanForIncomingRPC

[blathers-crl]

It looks like your PR touches production code but doesn't add or edit any test code. Did you consider adding tests to your PR?

_{🦉 Hoot! I am a Blathers, a bot for CockroachDB. My owner is dev-inf.}

[cockroach-teamcity]

This change is