Commit51412a9

Fenimorkin

authored and

dmpgpro

committed

FIX for max_connection more faster

Conflicts:src/backend/commands/waitlsn.c

1 parent9c6b9bd commit51412a9Copy full SHA for 51412a9

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src/backend/commands
- waitlsn.c

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+18

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`‎src/backend/commands/waitlsn.c`

Lines changed: 18 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -56,6 +56,7 @@ typedef struct`
`56`	`56`	`typedefstruct`
`57`	`57`	`{`
`58`	`58`	`chardummy;`
	`59`	`+intbackend_maxid;`
`59`	`60`	`BIDLatchl_arr[FLEXIBLE_ARRAY_MEMBER];`
`60`	`61`	`}GlobState;`
`61`	`62`
`@@ -68,17 +69,31 @@ WLOwnLatch(void)`
`68`	`69`	`SpinLockAcquire(&state->l_arr[MyBackendId].slock);`
`69`	`70`	`OwnLatch(&state->l_arr[MyBackendId].latch);`
`70`	`71`	`is_latch_owned= true;`
	`72`	`+`
	`73`	`+if (state->backend_maxid<MyBackendId)`
	`74`	`+state->backend_maxid=MyBackendId;`
	`75`	`+`
`71`	`76`	`state->l_arr[MyBackendId].pid=MyProcPid;`
`72`	`77`	`SpinLockRelease(&state->l_arr[MyBackendId].slock);`
`73`	`78`	`}`
`74`	`79`
`75`	`80`	`staticvoid`
`76`	`81`	`WLDisownLatch(void)`
`77`	`82`	`{`
	`83`	`+inti;`
`78`	`84`	`SpinLockAcquire(&state->l_arr[MyBackendId].slock);`
`79`	`85`	`DisownLatch(&state->l_arr[MyBackendId].latch);`
`80`	`86`	`is_latch_owned= false;`
`81`	`87`	`state->l_arr[MyBackendId].pid=0;`
	`88`	`+`
	`89`	`+if (state->backend_maxid==MyBackendId)`
	`90`	`+for (i= (MaxConnections+1);i >=0;i--)`
	`91`	`+if (state->l_arr[i].pid!=0)`
	`92`	`+{`
	`93`	`+state->backend_maxid=i;`
	`94`	`+break;`
	`95`	`+}`
	`96`	`+`
`82`	`97`	`SpinLockRelease(&state->l_arr[MyBackendId].slock);`
`83`	`98`	`}`
`84`	`99`
`@@ -124,14 +139,15 @@ WaitLSNShmemInit(void)`
`124`	`139`	`SpinLockInit(&state->l_arr[i].slock);`
`125`	`140`	`InitSharedLatch(&state->l_arr[i].latch);`
`126`	`141`	`}`
	`142`	`+state->backend_maxid=0;`
`127`	`143`	`}`
`128`	`144`	`}`
`129`	`145`
`130`	`146`	`void`
`131`	`147`	`WaitLSNSetLatch(void)`
`132`	`148`	`{`
`133`		`-uint32i;`
`134`		`-for (i=0;i< (MaxConnections+1);i++)`
	`149`	`+uinti;`
	`150`	`+for (i=0;i <=state->backend_maxid;i++)`
`135`	`151`	`{`
`136`	`152`	`SpinLockAcquire(&state->l_arr[i].slock);`
`137`	`153`	`if (state->l_arr[i].pid!=0)`

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Commit51412a9

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`‎src/backend/commands/waitlsn.c`

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