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Mop-up for wait event naming issues.

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Synchronize the event names for parallel hash join waits with other
event names, by getting rid of the slashes and dropping "-ing"
suffixes.  Rename ClogGroupUpdate to XactGroupUpdate, to match the
new SLRU name.  Move the ProcSignalBarrier event to the IPC category;
it doesn't belong under IO.

Also a bit more wordsmithing in the wait event documentation tables.

Discussion: https://postgr.es/m/4505.1589640417@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2020-05-16 21:00:05 -04:00
parent 2c8dd05d6c
commit 3048898e73
6 changed files with 142 additions and 126 deletions
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8
src/backend/executor/nodeHashjoin.c
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@ -327,7 +327,7 @@ ExecHashJoinImpl(PlanState *pstate, bool parallel)
if (hashtable->nbatch > 1)
ExecParallelHashJoinPartitionOuter(node);
BarrierArriveAndWait(build_barrier,
WAIT_EVENT_HASH_BUILD_HASHING_OUTER);
WAIT_EVENT_HASH_BUILD_HASH_OUTER);
}
Assert(BarrierPhase(build_barrier) == PHJ_BUILD_DONE);
@ -1135,14 +1135,14 @@ ExecParallelHashJoinNewBatch(HashJoinState *hjstate)
/* One backend allocates the hash table. */
if (BarrierArriveAndWait(batch_barrier,
WAIT_EVENT_HASH_BATCH_ELECTING))
WAIT_EVENT_HASH_BATCH_ELECT))
ExecParallelHashTableAlloc(hashtable, batchno);
/* Fall through. */
case PHJ_BATCH_ALLOCATING:
/* Wait for allocation to complete. */
BarrierArriveAndWait(batch_barrier,
WAIT_EVENT_HASH_BATCH_ALLOCATING);
WAIT_EVENT_HASH_BATCH_ALLOCATE);
/* Fall through. */
case PHJ_BATCH_LOADING:
@ -1162,7 +1162,7 @@ ExecParallelHashJoinNewBatch(HashJoinState *hjstate)
}
sts_end_parallel_scan(inner_tuples);
BarrierArriveAndWait(batch_barrier,
WAIT_EVENT_HASH_BATCH_LOADING);
WAIT_EVENT_HASH_BATCH_LOAD);
/* Fall through. */
case PHJ_BATCH_PROBING: