diff options
Diffstat (limited to 'src/backend/commands/async.c')
| -rw-r--r-- | src/backend/commands/async.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/src/backend/commands/async.c b/src/backend/commands/async.c index 4c1286eb988..774b26fd2c4 100644 --- a/src/backend/commands/async.c +++ b/src/backend/commands/async.c @@ -302,13 +302,10 @@ static SlruCtlData NotifyCtlData; #define QUEUE_FULL_WARN_INTERVAL 5000 /* warn at most once every 5s */ /* - * slru.c currently assumes that all filenames are four characters of hex - * digits. That means that we can use segments 0000 through FFFF. - * Each segment contains SLRU_PAGES_PER_SEGMENT pages which gives us - * the pages from 0 to SLRU_PAGES_PER_SEGMENT * 0x10000 - 1. - * - * It's of course possible to enhance slru.c, but this gives us so much - * space already that it doesn't seem worth the trouble. + * Use segments 0000 through FFFF. Each contains SLRU_PAGES_PER_SEGMENT pages + * which gives us the pages from 0 to SLRU_PAGES_PER_SEGMENT * 0x10000 - 1. + * We could use as many segments as SlruScanDirectory() allows, but this gives + * us so much space already that it doesn't seem worth the trouble. * * The most data we can have in the queue at a time is QUEUE_MAX_PAGE/2 * pages, because more than that would confuse slru.c into thinking there |