重新make下就好了, 文本界面出现了. 具体使用参看 man latencytop。
fcicq同学说：
加个 –nogui 参数就好了. 不需要重新编译.
谢谢！
好了,那么latencytop支持多少种的延迟原因呢？让latencytop.trans告诉你，我们也可以自己修改这个文件，把新的延迟原因加上去。
[shell]
$ cat /usr/share/latencytop/latencytop.trans
#
1 vfs_read Reading from file
1 vfs_write Writing to file
1 __mark_inode_dirty Marking inode dirty
1 vfs_readdir Reading directory content
1 vfs_unlink Unlinking file
1 blocking_notifier_call_chain Blocking notifier
1 lock_super Superblock lock contention
1 vfs_create Creating a file
1 KAS_ScheduleTimeout Binary AMD driver delay
1 firegl_lock_device Binary AMD driver delay
#
2 __bread Synchronous buffer read
2 do_generic_mapping_read Reading file data
2 sock_sendmsg Sending data over socket
2 do_sys_open Opening file
2 do_sys_poll Waiting for event (poll)
2 core_sys_select Waiting for event (select)
2 proc_reg_read Reading from /proc file
2 __pollwait Waiting for event (poll)
2 sys_fcntl FCNTL system call
2 scsi_error_handler SCSI error handler
2 proc_root_readdir Reading /proc directory
2 ksoftirqd Waking ksoftirqd
2 worker_thread .
2 do_unlinkat Unlinking file
2 __wait_on_buffer Waiting for buffer IO to complete
2 pdflush pdflush() kernel thread
2 kjournald kjournald() kernel thread
2 blkdev_ioctl block device IOCTL
2 kauditd_thread kernel audit daemon
2 tty_ioctl TTY IOCTL
2 __filemap_fdatawrite_range fdatasync system call
2 do_sync_write synchronous write
2 kthreadd kthreadd kernel thread
2 usb_port_resume Waking up USB device
2 usb_autoresume_device Waking up USB device
2 kswapd kswapd() kernel thread
2 md_thread Raid resync kernel thread
2 i915_wait_request Waiting for GPU command to complete
2 request_module Loading a kernel module
#
3 tty_wait_until_sent Waiting for TTY to finish sending
3 pipe_read Reading from a pipe
3 pipe_write Writing to a pipe
3 pipe_wait Waiting for pipe data
3 read_block_bitmap Reading EXT3 block bitmaps
3 scsi_execute_req Executing raw SCSI command
3 sys_wait4 Waiting for a process to die
3 sr_media_change Checking for media change
3 sr_do_ioctl SCSI cdrom ioctl
3 sd_ioctl SCSI disk ioctl
3 sr_cd_check Checking CDROM media present
3 ext3_read_inode Reading EXT3 inode
3 htree_dirblock_to_tree Reading EXT3 directory htree
3 ext3_readdir Reading EXT3 directory
3 ext3_bread Synchronous EXT3 read
3 ext3_free_branches Unlinking file on EXT3
3 ext3_get_branch Reading EXT3 indirect blocks
3 ext3_find_entry EXT3: Looking for file
3 __ext3_get_inode_loc Reading EXT3 inode
3 ext3_delete_inode EXT3 deleting inode
3 sync_page Writing a page to disk
3 tty_poll Waiting for TTY data
3 tty_read Waiting for TTY input
3 tty_write Writing data to TTY
3 update_atime Updating inode atime
3 page_cache_sync_readahead Pagecache sync readahead
3 do_fork Fork() system call
3 sys_mkdirat Creating directory
3 lookup_create Creating file
3 inet_sendmsg Sending TCP/IP data
3 tcp_recvmsg Receiving TCP/IP data
3 link_path_walk Following symlink
3 path_walk Walking directory tree
3 sys_getdents Reading directory content
3 unix_stream_recvmsg Waiting for data on unix socket
3 ext3_mkdir EXT3: Creating a directory
3 journal_get_write_access EXT3: Waiting for journal access
3 synchronize_rcu Waiting for RCU
3 input_close_device Closing input device
3 mousedev_close_device Closing mouse device
3 mousedev_release Closing mouse device
3 mousedev_open Opening mouse device
3 kmsg_read Reading from dmesg
3 sys_futex Userspace lock contention
3 do_futex Userspace lock contention
3 vt_waitactive vt_waitactive IOCTL
3 acquire_console_sem Waiting for console access
3 filp_close Closing a file
3 sync_inode (f)syncing an inode to disk
3 ata_exec_internal_sg Executing internal ATA command
3 writeback_inodes Writing back inodes
3 ext3_orphan_add EXT3 adding orphan
3 ext3_mark_inode_dirty EXT3 marking inode dirty
3 ext3_unlink EXT3 unlinking file
3 ext3_create EXT3 Creating a file
3 log_do_checkpoint EXT3 journal checkpoint
3 generic_delete_inode Deleting an inode
3 proc_delete_inode Removing /proc file
3 do_truncate Truncating file
3 sys_execve Executing a program
3 journal_commit_transaction EXT3: committing transaction
3 __stop_machine_run Freezing the kernel (for module load)
3 sys_munmap unmapping memory
3 sys_mmap mmaping memory
3 sync_buffer Writing buffer to disk (synchronous)
3 inotify_inode_queue_event Inotify event
3 proc_lookup Looking up /proc file
3 generic_make_request Creating block layer request
3 get_request_wait Creating block layer request
3 alloc_page_vma Allocating a VMA
#3 __d_lookup Looking up a dentry
3 blkdev_direct_IO Direct block device IO
3 sys_mprotect mprotect() system call
3 shrink_icache_memory reducing inode cache memory footprint
3 vfs_stat_fd stat() operation
3 cdrom_open opening cdrom device
3 sys_epoll_wait Waiting for event (epoll)
3 sync_sb_inodes Syncing inodes
3 tcp_connect TCP/IP connect
3 ata_scsi_ioctl ATA/SCSI disk ioctl
3 do_rmdir Removing directory
3 vfs_rmdir Removing directory
3 sys_flock flock() on a file
3 usbdev_open opening USB device
3 lock_kernel Big Kernel Lock contention
3 blk_execute_rq Submitting block IO
3 scsi_cmd_ioctl SCSI ioctl command
3 acpi_ec_transaction ACPI hardware access
3 journal_get_undo_access Waiting for EXT3 journal undo operation
3 i915_irq_wait Waiting for GPU interrupt
3 i915_gem_throttle_ioctl Throttling GPU while waiting for commands
#
#
5 do_page_fault Page fault
5 handle_mm_fault Page fault
5 filemap_fault Page fault
5 sync_filesystems Syncing filesystem
5 sys_nanosleep Application requested delay
5 sys_pause Application requested delay
5 evdev_read Reading keyboard/mouse input
5 do_fsync fsync() on a file (type ‘F’ for details)
5 __log_wait_for_space Waiting for EXT3 journal space
[/shell]
延迟原因非常的详细.