diff options
Diffstat (limited to 'usr/src')
| -rw-r--r-- | usr/src/uts/common/fs/zfs/arc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/usr/src/uts/common/fs/zfs/arc.c b/usr/src/uts/common/fs/zfs/arc.c index dd5b3accc4..2353ac67ce 100644 --- a/usr/src/uts/common/fs/zfs/arc.c +++ b/usr/src/uts/common/fs/zfs/arc.c @@ -200,6 +200,7 @@ int zfs_arc_grow_retry = 0; int zfs_arc_shrink_shift = 0; int zfs_arc_p_min_shift = 0; int zfs_disable_dup_eviction = 0; +int zfs_arc_average_blocksize = 8 * 1024; /* 8KB */ /* * Note that buffers can be in one of 6 states: @@ -938,10 +939,11 @@ buf_init(void) /* * The hash table is big enough to fill all of physical memory - * with an average 64K block size. The table will take up - * totalmem*sizeof(void*)/64K (eg. 128KB/GB with 8-byte pointers). + * with an average block size of zfs_arc_average_blocksize (default 8K). + * By default, the table will take up + * totalmem * sizeof(void*) / 8K (1MB per GB with 8-byte pointers). */ - while (hsize * 65536 < physmem * PAGESIZE) + while (hsize * zfs_arc_average_blocksize < physmem * PAGESIZE) hsize <<= 1; retry: buf_hash_table.ht_mask = hsize - 1; |