diff --git a/compare-btrfs b/compare-btrfs
new file mode 100755
index 0000000..459ebdd
--- /dev/null
+++ b/compare-btrfs
@@ -0,0 +1,35 @@
+#!/bin/bash
+
+BTRFS_EXPRESSIONS=(
+write_bw
+
+# perf list | grep btrfs: | awk '{print $1}'
+btrfs:btrfs_transaction_commit
+btrfs:btrfs_inode_new
+btrfs:btrfs_inode_request
+btrfs:btrfs_inode_evict
+btrfs:btrfs_get_extent
+btrfs:btrfs_ordered_extent_add
+btrfs:btrfs_ordered_extent_remove
+btrfs:btrfs_ordered_extent_start
+btrfs:btrfs_ordered_extent_put
+btrfs:__extent_writepage
+btrfs:btrfs_writepage_end_io_hook
+btrfs:btrfs_sync_file
+btrfs:btrfs_sync_fs
+btrfs:btrfs_delayed_tree_ref
+btrfs:btrfs_delayed_data_ref
+btrfs:btrfs_delayed_ref_head
+btrfs:btrfs_chunk_alloc
+btrfs:btrfs_chunk_free
+btrfs:btrfs_cow_block
+btrfs:btrfs_reserved_extent_alloc
+btrfs:btrfs_reserved_extent_free
+
+)
+
+for e in ${BTRFS_EXPRESSIONS[*]}
+do
+	./compare -g btrfs -e $e "$@"
+	echo
+done
diff --git a/compare-ext3 b/compare-ext3
new file mode 100755
index 0000000..1fdde14
--- /dev/null
+++ b/compare-ext3
@@ -0,0 +1,64 @@
+#!/bin/bash
+
+EXT3_EXPRESSIONS=(
+write_bw
+
+# perf list | grep ext3: | awk '{print $1}'
+ext3:ext3_free_inode
+ext3:ext3_request_inode
+ext3:ext3_allocate_inode
+ext3:ext3_evict_inode
+ext3:ext3_drop_inode
+ext3:ext3_mark_inode_dirty
+ext3:ext3_write_begin
+ext3:ext3_ordered_write_end
+ext3:ext3_writeback_write_end
+ext3:ext3_journalled_write_end
+ext3:ext3_ordered_writepage
+ext3:ext3_writeback_writepage
+ext3:ext3_journalled_writepage
+ext3:ext3_readpage
+ext3:ext3_releasepage
+ext3:ext3_invalidatepage
+ext3:ext3_discard_blocks
+ext3:ext3_request_blocks
+ext3:ext3_allocate_blocks
+ext3:ext3_free_blocks
+ext3:ext3_sync_file_enter
+ext3:ext3_sync_file_exit
+ext3:ext3_sync_fs
+ext3:ext3_rsv_window_add
+ext3:ext3_discard_reservation
+ext3:ext3_alloc_new_reservation
+ext3:ext3_reserved
+ext3:ext3_forget
+ext3:ext3_read_block_bitmap
+ext3:ext3_direct_IO_enter
+ext3:ext3_direct_IO_exit
+ext3:ext3_unlink_enter
+ext3:ext3_unlink_exit
+ext3:ext3_truncate_enter
+ext3:ext3_truncate_exit
+ext3:ext3_get_blocks_enter
+ext3:ext3_get_blocks_exit
+ext3:ext3_load_inode
+
+# perf list | grep jbd: | awk '{print $1}'
+jbd:jbd_checkpoint
+jbd:jbd_start_commit
+jbd:jbd_commit_locking
+jbd:jbd_commit_flushing
+jbd:jbd_commit_logging
+jbd:jbd_drop_transaction
+jbd:jbd_end_commit
+jbd:jbd_do_submit_data
+jbd:jbd_cleanup_journal_tail
+jbd:jbd_update_superblock_end
+
+)
+
+for e in ${EXT3_EXPRESSIONS[*]}
+do
+	./compare -g ext3 -e $e "$@"
+	echo
+done
diff --git a/compare-ext4 b/compare-ext4
new file mode 100755
index 0000000..86fbc49
--- /dev/null
+++ b/compare-ext4
@@ -0,0 +1,103 @@
+#!/bin/bash
+
+EXT4_EXPRESSIONS=(
+write_bw
+
+# perf list | grep ext4: | awk '{print $1}'
+ext4:ext4_free_inode
+ext4:ext4_request_inode
+ext4:ext4_allocate_inode
+ext4:ext4_evict_inode
+ext4:ext4_drop_inode
+ext4:ext4_mark_inode_dirty
+ext4:ext4_begin_ordered_truncate
+ext4:ext4_write_begin
+ext4:ext4_da_write_begin
+ext4:ext4_ordered_write_end
+ext4:ext4_writeback_write_end
+ext4:ext4_journalled_write_end
+ext4:ext4_da_write_end
+ext4:ext4_da_writepages
+ext4:ext4_da_write_pages
+ext4:ext4_da_writepages_result
+ext4:ext4_writepage
+ext4:ext4_readpage
+ext4:ext4_releasepage
+ext4:ext4_invalidatepage
+ext4:ext4_discard_blocks
+ext4:ext4_mb_new_inode_pa
+ext4:ext4_mb_new_group_pa
+ext4:ext4_mb_release_inode_pa
+ext4:ext4_mb_release_group_pa
+ext4:ext4_discard_preallocations
+ext4:ext4_mb_discard_preallocations
+ext4:ext4_request_blocks
+ext4:ext4_allocate_blocks
+ext4:ext4_free_blocks
+ext4:ext4_sync_file_enter
+ext4:ext4_sync_file_exit
+ext4:ext4_sync_fs
+ext4:ext4_alloc_da_blocks
+ext4:ext4_mballoc_alloc
+ext4:ext4_mballoc_prealloc
+ext4:ext4_mballoc_discard
+ext4:ext4_mballoc_free
+ext4:ext4_forget
+ext4:ext4_da_update_reserve_space
+ext4:ext4_da_reserve_space
+ext4:ext4_da_release_space
+ext4:ext4_mb_bitmap_load
+ext4:ext4_mb_buddy_bitmap_load
+ext4:ext4_read_block_bitmap_load
+ext4:ext4_load_inode_bitmap
+ext4:ext4_direct_IO_enter
+ext4:ext4_direct_IO_exit
+ext4:ext4_fallocate_enter
+ext4:ext4_fallocate_exit
+ext4:ext4_unlink_enter
+ext4:ext4_unlink_exit
+ext4:ext4_truncate_enter
+ext4:ext4_truncate_exit
+ext4:ext4_ext_convert_to_initialized_enter
+ext4:ext4_ext_convert_to_initialized_fastpath
+ext4:ext4_ext_map_blocks_enter
+ext4:ext4_ind_map_blocks_enter
+ext4:ext4_ext_map_blocks_exit
+ext4:ext4_ind_map_blocks_exit
+ext4:ext4_ext_load_extent
+ext4:ext4_load_inode
+ext4:ext4_journal_start
+ext4:ext4_trim_extent
+ext4:ext4_trim_all_free
+ext4:ext4_ext_handle_uninitialized_extents
+ext4:ext4_get_implied_cluster_alloc_exit
+ext4:ext4_ext_put_in_cache
+ext4:ext4_ext_in_cache
+ext4:ext4_find_delalloc_range
+ext4:ext4_get_reserved_cluster_alloc
+ext4:ext4_ext_show_extent
+ext4:ext4_remove_blocks
+ext4:ext4_ext_rm_leaf
+ext4:ext4_ext_rm_idx
+ext4:ext4_ext_remove_space
+ext4:ext4_ext_remove_space_done
+
+# perf list | grep jbd2: | awk '{print $1}'
+jbd2:jbd2_checkpoint
+jbd2:jbd2_start_commit
+jbd2:jbd2_commit_locking
+jbd2:jbd2_commit_flushing
+jbd2:jbd2_commit_logging
+jbd2:jbd2_end_commit
+jbd2:jbd2_submit_inode_data
+jbd2:jbd2_run_stats
+jbd2:jbd2_checkpoint_stats
+jbd2:jbd2_cleanup_journal_tail
+
+)
+
+for e in ${EXT4_EXPRESSIONS[*]}
+do
+	./compare -g ext4 -e $e "$@"
+	echo
+done
diff --git a/compare-xfs b/compare-xfs
new file mode 100755
index 0000000..42145f0
--- /dev/null
+++ b/compare-xfs
@@ -0,0 +1,291 @@
+#!/bin/bash
+
+
+XFS_EXPRESSIONS=(
+write_bw
+
+# perf list | grep xfs: | awk '{print $1}'
+xfs:xfs_attr_list_sf
+xfs:xfs_attr_list_sf_all
+xfs:xfs_attr_list_leaf
+xfs:xfs_attr_list_leaf_end
+xfs:xfs_attr_list_full
+xfs:xfs_attr_list_add
+xfs:xfs_attr_list_wrong_blk
+xfs:xfs_attr_list_notfound
+xfs:xfs_perag_get
+xfs:xfs_perag_get_tag
+xfs:xfs_perag_put
+xfs:xfs_perag_set_reclaim
+xfs:xfs_perag_clear_reclaim
+xfs:xfs_attr_list_node_descend
+xfs:xfs_iext_insert
+xfs:xfs_iext_remove
+xfs:xfs_bmap_pre_update
+xfs:xfs_bmap_post_update
+xfs:xfs_extlist
+xfs:xfs_buf_init
+xfs:xfs_buf_free
+xfs:xfs_buf_hold
+xfs:xfs_buf_rele
+xfs:xfs_buf_iodone
+xfs:xfs_buf_iorequest
+xfs:xfs_buf_bawrite
+xfs:xfs_buf_lock
+xfs:xfs_buf_lock_done
+xfs:xfs_buf_trylock
+xfs:xfs_buf_unlock
+xfs:xfs_buf_iowait
+xfs:xfs_buf_iowait_done
+xfs:xfs_buf_delwri_queue
+xfs:xfs_buf_delwri_dequeue
+xfs:xfs_buf_delwri_split
+xfs:xfs_buf_get_uncached
+xfs:xfs_bdstrat_shut
+xfs:xfs_buf_item_relse
+xfs:xfs_buf_item_iodone
+xfs:xfs_buf_item_iodone_async
+xfs:xfs_buf_error_relse
+xfs:xfs_trans_read_buf_io
+xfs:xfs_trans_read_buf_shut
+xfs:xfs_btree_corrupt
+xfs:xfs_da_btree_corrupt
+xfs:xfs_reset_dqcounts
+xfs:xfs_inode_item_push
+xfs:xfs_buf_find
+xfs:xfs_buf_get
+xfs:xfs_buf_read
+xfs:xfs_buf_ioerror
+xfs:xfs_buf_item_size
+xfs:xfs_buf_item_size_stale
+xfs:xfs_buf_item_format
+xfs:xfs_buf_item_format_stale
+xfs:xfs_buf_item_pin
+xfs:xfs_buf_item_unpin
+xfs:xfs_buf_item_unpin_stale
+xfs:xfs_buf_item_trylock
+xfs:xfs_buf_item_unlock
+xfs:xfs_buf_item_unlock_stale
+xfs:xfs_buf_item_committed
+xfs:xfs_buf_item_push
+xfs:xfs_buf_item_pushbuf
+xfs:xfs_trans_get_buf
+xfs:xfs_trans_get_buf_recur
+xfs:xfs_trans_getsb
+xfs:xfs_trans_getsb_recur
+xfs:xfs_trans_read_buf
+xfs:xfs_trans_read_buf_recur
+xfs:xfs_trans_log_buf
+xfs:xfs_trans_brelse
+xfs:xfs_trans_bjoin
+xfs:xfs_trans_bhold
+xfs:xfs_trans_bhold_release
+xfs:xfs_trans_binval
+xfs:xfs_ilock
+xfs:xfs_ilock_nowait
+xfs:xfs_ilock_demote
+xfs:xfs_iunlock
+xfs:xfs_iget_skip
+xfs:xfs_iget_reclaim
+xfs:xfs_iget_reclaim_fail
+xfs:xfs_iget_hit
+xfs:xfs_iget_miss
+xfs:xfs_getattr
+xfs:xfs_setattr
+xfs:xfs_readlink
+xfs:xfs_alloc_file_space
+xfs:xfs_free_file_space
+xfs:xfs_readdir
+xfs:xfs_get_acl
+xfs:xfs_vm_bmap
+xfs:xfs_file_ioctl
+xfs:xfs_file_compat_ioctl
+xfs:xfs_ioctl_setattr
+xfs:xfs_dir_fsync
+xfs:xfs_file_fsync
+xfs:xfs_destroy_inode
+xfs:xfs_write_inode
+xfs:xfs_evict_inode
+xfs:xfs_dquot_dqalloc
+xfs:xfs_dquot_dqdetach
+xfs:xfs_ihold
+xfs:xfs_irele
+xfs:xfs_inode_pin
+xfs:xfs_inode_unpin
+xfs:xfs_inode_unpin_nowait
+xfs:xfs_remove
+xfs:xfs_link
+xfs:xfs_lookup
+xfs:xfs_create
+xfs:xfs_symlink
+xfs:xfs_rename
+xfs:xfs_dqadjust
+xfs:xfs_dqreclaim_want
+xfs:xfs_dqreclaim_dirty
+xfs:xfs_dqreclaim_unlink
+xfs:xfs_dqattach_found
+xfs:xfs_dqattach_get
+xfs:xfs_dqinit
+xfs:xfs_dqreuse
+xfs:xfs_dqalloc
+xfs:xfs_dqtobp_read
+xfs:xfs_dqread
+xfs:xfs_dqread_fail
+xfs:xfs_dqlookup_found
+xfs:xfs_dqlookup_want
+xfs:xfs_dqlookup_freelist
+xfs:xfs_dqlookup_done
+xfs:xfs_dqget_hit
+xfs:xfs_dqget_miss
+xfs:xfs_dqput
+xfs:xfs_dqput_wait
+xfs:xfs_dqput_free
+xfs:xfs_dqrele
+xfs:xfs_dqflush
+xfs:xfs_dqflush_force
+xfs:xfs_dqflush_done
+xfs:xfs_log_done_nonperm
+xfs:xfs_log_done_perm
+xfs:xfs_log_reserve
+xfs:xfs_log_umount_write
+xfs:xfs_log_grant_enter
+xfs:xfs_log_grant_exit
+xfs:xfs_log_grant_error
+xfs:xfs_log_grant_sleep1
+xfs:xfs_log_grant_wake1
+xfs:xfs_log_grant_sleep2
+xfs:xfs_log_grant_wake2
+xfs:xfs_log_grant_wake_up
+xfs:xfs_log_regrant_write_enter
+xfs:xfs_log_regrant_write_exit
+xfs:xfs_log_regrant_write_error
+xfs:xfs_log_regrant_write_sleep1
+xfs:xfs_log_regrant_write_wake1
+xfs:xfs_log_regrant_write_sleep2
+xfs:xfs_log_regrant_write_wake2
+xfs:xfs_log_regrant_write_wake_up
+xfs:xfs_log_regrant_reserve_enter
+xfs:xfs_log_regrant_reserve_exit
+xfs:xfs_log_regrant_reserve_sub
+xfs:xfs_log_ungrant_enter
+xfs:xfs_log_ungrant_exit
+xfs:xfs_log_ungrant_sub
+xfs:xfs_ail_push
+xfs:xfs_ail_pushbuf
+xfs:xfs_ail_pushbuf_pinned
+xfs:xfs_ail_pinned
+xfs:xfs_ail_locked
+xfs:xfs_file_read
+xfs:xfs_file_buffered_write
+xfs:xfs_file_direct_write
+xfs:xfs_file_splice_read
+xfs:xfs_file_splice_write
+xfs:xfs_writepage
+xfs:xfs_releasepage
+xfs:xfs_invalidatepage
+xfs:xfs_map_blocks_found
+xfs:xfs_map_blocks_alloc
+xfs:xfs_get_blocks_found
+xfs:xfs_get_blocks_alloc
+xfs:xfs_delalloc_enospc
+xfs:xfs_unwritten_convert
+xfs:xfs_get_blocks_notfound
+xfs:xfs_setfilesize
+xfs:xfs_itruncate_data_start
+xfs:xfs_itruncate_data_end
+xfs:xfs_pagecache_inval
+xfs:xfs_bunmap
+xfs:xfs_alloc_busy
+xfs:xfs_alloc_busy_enomem
+xfs:xfs_alloc_busy_force
+xfs:xfs_alloc_busy_reuse
+xfs:xfs_alloc_busy_clear
+xfs:xfs_alloc_busy_trim
+xfs:xfs_trans_commit_lsn
+xfs:xfs_agf
+xfs:xfs_free_extent
+xfs:xfs_alloc_exact_done
+xfs:xfs_alloc_exact_notfound
+xfs:xfs_alloc_exact_error
+xfs:xfs_alloc_near_nominleft
+xfs:xfs_alloc_near_first
+xfs:xfs_alloc_near_greater
+xfs:xfs_alloc_near_lesser
+xfs:xfs_alloc_near_error
+xfs:xfs_alloc_near_noentry
+xfs:xfs_alloc_near_busy
+xfs:xfs_alloc_size_neither
+xfs:xfs_alloc_size_noentry
+xfs:xfs_alloc_size_nominleft
+xfs:xfs_alloc_size_done
+xfs:xfs_alloc_size_error
+xfs:xfs_alloc_size_busy
+xfs:xfs_alloc_small_freelist
+xfs:xfs_alloc_small_notenough
+xfs:xfs_alloc_small_done
+xfs:xfs_alloc_small_error
+xfs:xfs_alloc_vextent_badargs
+xfs:xfs_alloc_vextent_nofix
+xfs:xfs_alloc_vextent_noagbp
+xfs:xfs_alloc_vextent_loopfailed
+xfs:xfs_alloc_vextent_allfailed
+xfs:xfs_dir2_sf_addname
+xfs:xfs_dir2_sf_create
+xfs:xfs_dir2_sf_lookup
+xfs:xfs_dir2_sf_replace
+xfs:xfs_dir2_sf_removename
+xfs:xfs_dir2_sf_toino4
+xfs:xfs_dir2_sf_toino8
+xfs:xfs_dir2_sf_to_block
+xfs:xfs_dir2_block_addname
+xfs:xfs_dir2_block_lookup
+xfs:xfs_dir2_block_replace
+xfs:xfs_dir2_block_removename
+xfs:xfs_dir2_block_to_sf
+xfs:xfs_dir2_block_to_leaf
+xfs:xfs_dir2_leaf_addname
+xfs:xfs_dir2_leaf_lookup
+xfs:xfs_dir2_leaf_replace
+xfs:xfs_dir2_leaf_removename
+xfs:xfs_dir2_leaf_to_block
+xfs:xfs_dir2_leaf_to_node
+xfs:xfs_dir2_node_addname
+xfs:xfs_dir2_node_lookup
+xfs:xfs_dir2_node_replace
+xfs:xfs_dir2_node_removename
+xfs:xfs_dir2_node_to_leaf
+xfs:xfs_dir2_leafn_add
+xfs:xfs_dir2_leafn_remove
+xfs:xfs_dir2_grow_inode
+xfs:xfs_dir2_shrink_inode
+xfs:xfs_dir2_leafn_moveents
+xfs:xfs_swap_extent_before
+xfs:xfs_swap_extent_after
+xfs:xfs_log_recover_item_add
+xfs:xfs_log_recover_item_add_cont
+xfs:xfs_log_recover_item_reorder_head
+xfs:xfs_log_recover_item_reorder_tail
+xfs:xfs_log_recover_item_recover
+xfs:xfs_log_recover_buf_not_cancel
+xfs:xfs_log_recover_buf_cancel
+xfs:xfs_log_recover_buf_cancel_add
+xfs:xfs_log_recover_buf_cancel_ref_inc
+xfs:xfs_log_recover_buf_recover
+xfs:xfs_log_recover_buf_inode_buf
+xfs:xfs_log_recover_buf_reg_buf
+xfs:xfs_log_recover_buf_dquot_buf
+xfs:xfs_log_recover_inode_recover
+xfs:xfs_log_recover_inode_cancel
+xfs:xfs_log_recover_inode_skip
+xfs:xfs_discard_extent
+xfs:xfs_discard_toosmall
+xfs:xfs_discard_exclude
+xfs:xfs_discard_busy
+
+)
+
+for e in ${XFS_EXPRESSIONS[*]}
+do
+	./compare -g xfs -e $e "$@"
+	echo
+done