diff options
Diffstat (limited to 'src/third_party/wiredtiger/src/os_win/os_fs.c')
| -rw-r--r-- | src/third_party/wiredtiger/src/os_win/os_fs.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/third_party/wiredtiger/src/os_win/os_fs.c b/src/third_party/wiredtiger/src/os_win/os_fs.c index 7ab7178114b..6c74f2f411f 100644 --- a/src/third_party/wiredtiger/src/os_win/os_fs.c +++ b/src/third_party/wiredtiger/src/os_win/os_fs.c @@ -521,10 +521,16 @@ __win_open_file(WT_FILE_SYSTEM *file_system, WT_SESSION *wt_session, FLD_ISSET(conn->txn_logsync, WT_LOG_DSYNC)) f |= FILE_FLAG_WRITE_THROUGH; - /* Disable read-ahead on trees: it slows down random read workloads. */ - if (file_type == WT_FS_OPEN_FILE_TYPE_DATA) + /* If the user indicated a random workload, disable read-ahead. */ + if (file_type == WT_FS_OPEN_FILE_TYPE_DATA && + LF_ISSET(WT_FS_OPEN_ACCESS_RAND)) f |= FILE_FLAG_RANDOM_ACCESS; + /* If the user indicated a sequential workload, set that. */ + if (file_type == WT_FS_OPEN_FILE_TYPE_DATA && + LF_ISSET(WT_FS_OPEN_ACCESS_SEQ)) + f |= FILE_FLAG_SEQUENTIAL_SCAN; + win_fh->filehandle = CreateFileW(name_wide->data, desired_access, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, dwCreationDisposition, f, NULL); |