Merge pull request #11919 from liewegas/wip-bluestore-cache-meta

os/bluestore: bluestore_cache_meta_ratio = .5

Reviewed-by: Mark Nelson <mnelson@redhat.com>

src/common/config_opts.h

@@ -999,7 +999,7 @@ OPTION(bluestore_block_wal_path, OPT_STR, "")
 OPTION(bluestore_block_wal_size, OPT_U64, 96 * 1024*1024) // rocksdb wal
 OPTION(bluestore_block_wal_create, OPT_BOOL, false)
 OPTION(bluestore_block_preallocate_file, OPT_BOOL, false) //whether preallocate space if block/db_path/wal_path is file rather that block device.
-OPTION(bluestore_precondition_bluefs, OPT_U64, 128*1024*1024)  // write this much data at mkfs
+OPTION(bluestore_precondition_bluefs, OPT_U64, 512*1024*1024)  // write this much data at mkfs
 OPTION(bluestore_precondition_bluefs_block, OPT_U64, 1048576)
 OPTION(bluestore_csum_type, OPT_STR, "crc32c") // none|xxhash32|xxhash64|crc32c|crc32c_16|crc32c_8
 OPTION(bluestore_csum_min_block, OPT_U32, 4096)
@@ -1031,7 +1031,7 @@ OPTION(bluestore_cache_type, OPT_STR, "2q")   // lru, 2q
 OPTION(bluestore_2q_cache_kin_ratio, OPT_DOUBLE, .5)    // kin page slot size / max page slot size
 OPTION(bluestore_2q_cache_kout_ratio, OPT_DOUBLE, .5)   // number of kout page slot / total number of page slot
 OPTION(bluestore_cache_size, OPT_U64, 1024*1024*1024)
-OPTION(bluestore_cache_meta_ratio, OPT_DOUBLE, .1)
+OPTION(bluestore_cache_meta_ratio, OPT_DOUBLE, .5)
 OPTION(bluestore_kvbackend, OPT_STR, "rocksdb")
 OPTION(bluestore_allocator, OPT_STR, "bitmap")     // stupid | bitmap
 OPTION(bluestore_freelist_type, OPT_STR, "bitmap") // extent | bitmap