[Devel] Re: Kernel text size with the pid namespaces fixes

[Cedric Le Goater]

Hello Pavel !

Pavel Emelyanov wrote:
> Hi, Suka
> 
> I have posted tree patches with un-inlining of some macros
> and static inline calls that are expanded into another call.
> 
> At my i386 notebook this saved about half-a-kilo from the
> vmlinux. Could you please check these patches at your
> boxes/configs to see how much progress we have here.
> 
> Here's the combined patch for 2.6.24-rc8-mm1

on my qemu configuration, scripts/bloat-o-meter gave the following 
results.

it would be interesting to run some micro benchmark. Did you have
time to do that ?

Thanks,

C. 

add/remove: 9/0 grow/shrink: 3/47 up/down: 194/-683 (-489)
function                                     old     new   delta
find_task_by_vpid                              -      29     +29
find_vpid                                      -      25     +25
task_tgid_nr_ns                                -      22     +22
task_session_nr_ns                             -      22     +22
task_pgrp_nr_ns                                -      22     +22
find_task_by_pid                               -      19     +19
task_pid_nr_ns                                 -      16     +16
find_task_by_pid_ns                            -      16     +16
find_pid                                       -      15     +15
proc_task_readdir                            762     766      +4
msg_exit_ns                                  117     119      +2
_request_firmware                            688     690      +2
nfs_readpage_truncate_uninitialised_page     298     297      -1
sys_swapoff                                 1898    1896      -2
set_get_cmap                                 332     330      -2
__iovec_copy_from_user_inatomic               88      86      -2
proc_pid_readdir                             438     434      -4
init_pit_clocksource                          82      78      -4
do_notify_parent_cldstop                     297     293      -4
do_notify_parent                             394     390      -4
kill_proc                                     39      34      -5
sys_timer_create                             720     713      -7
do_setlink                                   796     789      -7
debug_rt_mutex_print_deadlock                406     399      -7
check_clock                                  122     115      -7
rest_init                                     78      69      -9
posix_cpu_clock_get                          221     212      -9
__set_special_pids                           154     144     -10
vma_adjust                                   855     844     -11
tty_ioctl                                   3274    3263     -11
kthreadd                                     248     237     -11
sys_kill                                     313     301     -12
sys_capget                                   285     273     -12
sys_getsid                                   128     114     -14
sys_getpgid                                  128     114     -14
posix_cpu_timer_create                       240     226     -14
kill_proc_info                                45      31     -14
find_get_pid                                  31      16     -15
sys_sched_getscheduler                        92      76     -16
sys_sched_getparam                           143     127     -16
sys_get_robust_list                          149     133     -16
sched_setaffinity                            259     243     -16
sched_getaffinity                            114      98     -16
ptrace_get_task_struct                        90      74     -16
futex_lock_pi                               2435    2419     -16
f_setown                                      68      52     -16
do_tkill                                     280     264     -16
do_sched_setscheduler                        113      97     -16
sys_sched_rr_get_interval                    161     141     -20
sys_capset                                   702     681     -21
eligible_child                               215     191     -24
do_task_stat                                2135    2107     -28
sys_setpriority                              446     416     -30
sys_setpgid                                  419     389     -30
sys_ioprio_set                               471     441     -30
sys_ioprio_get                               388     358     -30
sys_getpriority                              439     409     -30
proc_pid_status                             1216    1186     -30
do_wait                                     2677    2639     -38
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