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Make all built-in lwlock tranche IDs fixed.

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This makes the values more stable, which seems like a good thing for
anybody who needs to look at at them.

Alexander Korotkov and Amit Kapila
This commit is contained in:
Robert Haas
2016-02-02 06:42:14 -05:00
parent 1d0c3b3f8a
commit 7191ce8bea
10 changed files with 24 additions and 11 deletions
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2
src/backend/access/transam/clog.c
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@@ -457,7 +457,7 @@ CLOGShmemInit(void)
{
ClogCtl->PagePrecedes = CLOGPagePrecedes;
SimpleLruInit(ClogCtl, "clog", CLOGShmemBuffers(), CLOG_LSNS_PER_PAGE,
CLogControlLock, "pg_clog");
CLogControlLock, "pg_clog", LWTRANCHE_CLOG_BUFFERS);
}
/*

3
src/backend/access/transam/commit_ts.c
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@@ -485,7 +485,8 @@ CommitTsShmemInit(void)
CommitTsCtl->PagePrecedes = CommitTsPagePrecedes;
SimpleLruInit(CommitTsCtl, "commit_timestamp", CommitTsShmemBuffers(), 0,
CommitTsControlLock, "pg_commit_ts");
CommitTsControlLock, "pg_commit_ts",
LWTRANCHE_COMMITTS_BUFFERS);
commitTsShared = ShmemInitStruct("CommitTs shared",
sizeof(CommitTimestampShared),

6
src/backend/access/transam/multixact.c
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@@ -1831,10 +1831,12 @@ MultiXactShmemInit(void)
SimpleLruInit(MultiXactOffsetCtl,
"multixact_offset", NUM_MXACTOFFSET_BUFFERS, 0,
MultiXactOffsetControlLock, "pg_multixact/offsets");
MultiXactOffsetControlLock, "pg_multixact/offsets",
LWTRANCHE_MXACTOFFSET_BUFFERS);
SimpleLruInit(MultiXactMemberCtl,
"multixact_member", NUM_MXACTMEMBER_BUFFERS, 0,
MultiXactMemberControlLock, "pg_multixact/members");
MultiXactMemberControlLock, "pg_multixact/members",
LWTRANCHE_MXACTMEMBER_BUFFERS);
/* Initialize our shared state struct */
MultiXactState = ShmemInitStruct("Shared MultiXact State",

4
src/backend/access/transam/slru.c
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@@ -162,7 +162,7 @@ SimpleLruShmemSize(int nslots, int nlsns)
void
SimpleLruInit(SlruCtl ctl, const char *name, int nslots, int nlsns,
LWLock *ctllock, const char *subdir)
LWLock *ctllock, const char *subdir, int tranche_id)
{
SlruShared shared;
bool found;
@@ -215,7 +215,7 @@ SimpleLruInit(SlruCtl ctl, const char *name, int nslots, int nlsns,
Assert(strlen(name) + 1 < SLRU_MAX_NAME_LENGTH);
strlcpy(shared->lwlock_tranche_name, name, SLRU_MAX_NAME_LENGTH);
shared->lwlock_tranche_id = LWLockNewTrancheId();
shared->lwlock_tranche_id = tranche_id;
shared->lwlock_tranche.name = shared->lwlock_tranche_name;
shared->lwlock_tranche.array_base = shared->buffer_locks;
shared->lwlock_tranche.array_stride = sizeof(LWLockPadded);

3
src/backend/access/transam/subtrans.c
View File

@@ -179,7 +179,8 @@ SUBTRANSShmemInit(void)
{
SubTransCtl->PagePrecedes = SubTransPagePrecedes;
SimpleLruInit(SubTransCtl, "subtrans", NUM_SUBTRANS_BUFFERS, 0,
SubtransControlLock, "pg_subtrans");
SubtransControlLock, "pg_subtrans",
LWTRANCHE_SUBTRANS_BUFFERS);
/* Override default assumption that writes should be fsync'd */
SubTransCtl->do_fsync = false;
}