latencytop traces

From: wli
Date: Wed Feb 25 2009 - 17:26:21 EST


I ran into a nasty one.
Here it is.


-- wli

LatencyTOP version 0.4 (C) 2008 Intel Corporation

Cause Maximum Percentage
xlog_state_get_iclog_space xlog_write xfs_log_writ1011.4 msec 8.4 %
sync_page __lock_page find_lock_page filemap_fault740.3 msec 30.6 %
down xfs_buf_lock xfs_getsb xfs_trans_getsb xfs_tr676.8 msec 8.8 %
xlog_state_get_iclog_space xlog_write xfs_log_writ527.5 msec 2.6 %
down xfs_buf_lock _xfs_buf_find xfs_buf_get_flags 326.0 msec 0.7 %
xlog_state_get_iclog_space xlog_write xfs_log_writ158.6 msec 0.3 %
xlog_state_get_iclog_space xlog_write xfs_log_writ 70.0 msec 0.2 %
down xfs_buf_lock xfs_getsb xfs_trans_getsb xfs_tr 60.4 msec 0.2 %
Scheduler: waiting for cpu_create xfs_vn_mknod xfs 57.2 msec 18.2 %


Process git (26894) Total: 1212.9 msec
sync_page __lock_page find_lock_page filemap_fault 57.7 msec 40.0 %lt do
Scheduler: waiting for cpu 57.2 msec 60.0 %






zsh zsh gnome-volume-co gconfd-2 smplayer zsh evince pdflush view git

LatencyTOP version 0.4 (C) 2008 Intel Corporation

Cause Maximum Percentage
sync_page __lock_page find_lock_page filemap_fault1228.0 msec 5.3 %
sync_page sync_page_killable __lock_page_killable 1200.0 msec 36.5 %
xlog_state_get_iclog_space xlog_write xfs_log_writ172.6 msec 3.8 %
xfs_ilock xfs_iomap __xfs_get_blocks xfs_get_block117.4 msec 0.3 %
do_fork sys_vfork syscall_call generic_file_buffer 43.5 msec 0.1 %
Scheduler: waiting for cpuwrite 40.0 msec 16.7 %
xfs_buf_iowait _xfs_buf_read xfs_buf_read_flags xf 37.0 msec 2.2 %
down xfs_buf_lock _xfs_buf_find xfs_buf_get_flags 21.4 msec 0.1 %
xfs_buf_iowait _xfs_buf_read xfs_buf_read_flags xf 15.8 msec 0.0 %


Process make (4903) Total: 1711.2 msec
sync_page __lock_page find_lock_page filemap_fault968.3 msec 56.6 %lt do
sync_page sync_page_killable __lock_page_killable 170.3 msec 17.9 %_read
Scheduler: waiting for cpu_read vfs_read sys_read 31.8 msec 21.8 %
xfs_buf_iowait _xfs_buf_read xfs_buf_read_flags xf 15.1 msec 3.6 %_to_b
pipe_wait pipe_read do_sync_read vfs_read sys_read 0.4 msec 0.0 %th_wa
lk


vmstat python zsh top zsh zsh gnome-volume-co gconfd-2 smplayer make

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