diff options
Diffstat (limited to 'src/backend/storage/lmgr/proc.c')
| -rw-r--r-- | src/backend/storage/lmgr/proc.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c index 031e91d14c5..458cd27a386 100644 --- a/src/backend/storage/lmgr/proc.c +++ b/src/backend/storage/lmgr/proc.c @@ -56,7 +56,7 @@ int DeadlockTimeout = 1000; int StatementTimeout = 0; bool log_lock_waits = false; -/* Pointer to this process's PGPROC struct, if any */ +/* Pointer to this process's PGPROC and PGXACT structs, if any */ PGPROC *MyProc = NULL; PGXACT *MyPgXact = NULL; @@ -190,15 +190,11 @@ InitProcGlobal(void) ProcGlobal->checkpointerLatch = NULL; /* - * Create and initialize all the PGPROC structures we'll need (except for - * those used for 2PC, which are embedded within a GlobalTransactionData - * struct). - * - * There are four separate consumers of PGPROC structures: (1) normal - * backends, (2) autovacuum workers and the autovacuum launcher, (3) - * auxiliary processes, and (4) prepared transactions. Each PGPROC - * structure is dedicated to exactly one of these purposes, and they do - * not move between groups. + * Create and initialize all the PGPROC structures we'll need. There are + * four separate consumers: (1) normal backends, (2) autovacuum workers + * and the autovacuum launcher, (3) auxiliary processes, and (4) prepared + * transactions. Each PGPROC structure is dedicated to exactly one of + * these purposes, and they do not move between groups. */ procs = (PGPROC *) ShmemAlloc(TotalProcs * sizeof(PGPROC)); ProcGlobal->allProcs = procs; @@ -214,7 +210,7 @@ InitProcGlobal(void) * from the main PGPROC array so that the most heavily accessed data is * stored contiguously in memory in as few cache lines as possible. This * provides significant performance benefits, especially on a - * multiprocessor system. Thereis one PGXACT structure for every PGPROC + * multiprocessor system. There is one PGXACT structure for every PGPROC * structure. */ pgxacts = (PGXACT *) ShmemAlloc(TotalProcs * sizeof(PGXACT)); |