From: Roger Luethi <rl@hellgate.ch>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>, Ingo Molnar <mingo@redhat.com>
Subject: Re: [PATCH] fix f_version optimization for get_tgid_list
Date: Tue, 31 Aug 2004 23:51:31 +0200 [thread overview]
Message-ID: <20040831215130.GA20844@k3.hellgate.ch> (raw)
In-Reply-To: <4134DEFB.2070607@colorfullife.com>
test: top -d 0 -b -n 10 > /dev/null
==> 2.6.8 <==
real 0m19.092s
user 0m5.013s
sys 0m12.622s
CPU: CPU with timer interrupt, speed 0 MHz (estimated)
Profiling through timer interrupt
samples % image name symbol name
6338 35.9379 vmlinux get_tgid_list
1742 9.8775 vmlinux pid_alive
1264 7.1672 libc-2.3.3.so _IO_vfscanf_internal
940 5.3300 vmlinux number
625 3.5439 vmlinux proc_pid_stat
532 3.0166 libc-2.3.3.so _IO_vfprintf_internal
398 2.2567 vmlinux __d_lookup
297 1.6841 vmlinux vsnprintf
268 1.5196 vmlinux link_path_walk
266 1.5083 libc-2.3.3.so __i686.get_pc_thunk.bx
214 1.2134 libc-2.3.3.so ____strtoul_l_internal
210 1.1907 vmlinux task_statm
209 1.1851 libc-2.3.3.so _IO_default_xsputn_internal
199 1.1284 libc-2.3.3.so _IO_putc_internal
172 0.9753 libc-2.3.3.so ____strtol_l_internal
135 0.7655 libc-2.3.3.so _IO_sputbackc_internal
130 0.7371 libncurses.so.5.4 _nc_outch
124 0.7031 vmlinux pid_revalidate
115 0.6521 top task_show
112 0.6351 libc-2.3.3.so __find_specmb
103 0.5840 vmlinux atomic_dec_and_lock
98 0.5557 libc-2.3.3.so __funlockfile
76 0.4309 libncurses.so.5.4 tputs
73 0.4139 vmlinux system_call
72 0.4083 libc-2.3.3.so _IO_str_overflow_internal
72 0.4083 libc-2.3.3.so __GI___printf_fp
66 0.3742 vmlinux may_open
65 0.3686 libc-2.3.3.so __GI_strrchr
61 0.3459 vmlinux path_lookup
60 0.3402 libc-2.3.3.so __GI___errno_location
58 0.3289 libc-2.3.3.so __flockfile
55 0.3119 vmlinux __might_sleep
==> 2.6.8 + patch-tgid-bugfixes <==
real 0m10.062s
user 0m5.042s
sys 0m4.111s
CPU: CPU with timer interrupt, speed 0 MHz (estimated)
Profiling through timer interrupt
samples % image name symbol name
1330 14.5292 libc-2.3.3.so _IO_vfscanf_internal
931 10.1704 vmlinux number
618 6.7511 vmlinux proc_pid_stat
494 5.3965 libc-2.3.3.so _IO_vfprintf_internal
307 3.3537 vmlinux __d_lookup
296 3.2336 vmlinux vsnprintf
233 2.5453 libc-2.3.3.so _IO_putc_internal
216 2.3596 libc-2.3.3.so _IO_default_xsputn_internal
212 2.3159 libc-2.3.3.so ____strtoul_l_internal
208 2.2722 libc-2.3.3.so __i686.get_pc_thunk.bx
200 2.1848 libc-2.3.3.so ____strtol_l_internal
199 2.1739 vmlinux link_path_walk
198 2.1630 vmlinux task_statm
156 1.7042 libc-2.3.3.so _IO_sputbackc_internal
128 1.3983 libncurses.so.5.4 _nc_outch
122 1.3328 top task_show
110 1.2017 vmlinux pid_revalidate
84 0.9176 libc-2.3.3.so __funlockfile
81 0.8849 libc-2.3.3.so __find_specmb
72 0.7865 libncurses.so.5.4 tputs
68 0.7428 vmlinux system_call
65 0.7101 libc-2.3.3.so __GI___errno_location
64 0.6991 libc-2.3.3.so _IO_str_overflow_internal
63 0.6882 libc-2.3.3.so __flockfile
63 0.6882 vmlinux get_tgid_list
61 0.6664 libc-2.3.3.so __strnlen
59 0.6445 libc-2.3.3.so __GI___printf_fp
57 0.6227 vmlinux atomic_dec_and_lock
55 0.6008 libc-2.3.3.so __GI_strrchr
54 0.5899 vmlinux may_open
52 0.5681 libproc-3.2.3.so escape_str
51 0.5571 libc-2.3.3.so _IO_str_init_static_internal
51 0.5571 libc-2.3.3.so __GI___strtoul_internal
prev parent reply other threads:[~2004-08-31 21:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-31 20:26 [PATCH] fix f_version optimization for get_tgid_list Manfred Spraul
2004-08-31 21:51 ` Roger Luethi [this message]
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