diff options
Diffstat (limited to 'src/third_party/wiredtiger/test/format/config.c')
| -rw-r--r-- | src/third_party/wiredtiger/test/format/config.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/format/config.c b/src/third_party/wiredtiger/test/format/config.c index eb86c0860e7..de68fd9fe60 100644 --- a/src/third_party/wiredtiger/test/format/config.c +++ b/src/third_party/wiredtiger/test/format/config.c @@ -31,6 +31,7 @@ static void config(void); static void config_backup_incr(void); +static void config_backup_incr_granularity(void); static void config_backward_compatible(void); static void config_cache(void); static void config_checkpoint(void); @@ -283,6 +284,8 @@ config_backup_incr(void) if (g.c_logging_archive) config_single("logging.archive=0", false); } + if (g.c_backup_incr_flag == INCREMENTAL_BLOCK) + config_backup_incr_granularity(); return; } @@ -311,11 +314,56 @@ config_backup_incr(void) case 9: case 10: config_single("backup.incremental=block", false); + config_backup_incr_granularity(); break; } } /* + * config_backup_incr_granularity -- + * Configuration of block granularity for incremental backup + */ +static void +config_backup_incr_granularity(void) +{ + uint32_t granularity, i; + char confbuf[128]; + + if (config_is_perm("backup.incr_granularity")) + return; + + /* + * Three block sizes are interesting. 16MB is the default for WiredTiger and MongoDB. 1MB is the + * minimum allowed by MongoDB. Smaller sizes stress block tracking and are good for testing. The + * granularity is in units of KB. + */ + granularity = 0; + i = mmrand(NULL, 1, 10); + switch (i) { + case 1: /* 50% small size for stress testing */ + case 2: + case 3: + case 4: + case 5: + granularity = 4 * i; + break; + case 6: /* 20% 1MB granularity */ + case 7: + granularity = 1024; + break; + case 8: /* 30% 16MB granularity */ + case 9: + case 10: + granularity = 16 * 1024; + break; + } + + testutil_check( + __wt_snprintf(confbuf, sizeof(confbuf), "backup.incr_granularity=%u", granularity)); + config_single(confbuf, false); +} + +/* * config_backward_compatible -- * Backward compatibility configuration. */ |