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libbb: use a wrapper around sysconf(_SC_CLK_TCK) to save a few bytes

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function                                             old     new   delta
bb_sc_clk_tck                                          -      10     +10
timescmd                                             118     113      -5
print_route                                         1763    1758      -5
mpstat_main                                         1288    1283      -5
iostat_main                                         1947    1942      -5
INET_setroute                                        879     871      -8
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/5 up/down: 10/-28)            Total: -18 bytes
Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Bartosz Golaszewski
2014-06-22 14:01:13 +02:00
committed by Denys Vlasenko
parent f92f1d0181
commit 5d2e409ef8
7 changed files with 12 additions and 16 deletions
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7
procps/iostat.c
View File

@@ -109,11 +109,6 @@ enum {
OPT_m = 1 << 5,
};
static ALWAYS_INLINE unsigned get_user_hz(void)
{
return sysconf(_SC_CLK_TCK);
}
static ALWAYS_INLINE int this_is_smp(void)
{
return (G.total_cpus > 1);
@@ -414,7 +409,7 @@ int iostat_main(int argc UNUSED_PARAM, char **argv)
memset(&stats_data, 0, sizeof(stats_data));
/* Get number of clock ticks per sec */
G.clk_tck = get_user_hz();
G.clk_tck = bb_clk_tck();
/* Determine number of CPUs */
G.total_cpus = get_cpu_count();

8
procps/mpstat.c
View File

@@ -775,12 +775,6 @@ static void main_loop(void)
/* Initialization */
/* Get number of clock ticks per sec */
static ALWAYS_INLINE unsigned get_hz(void)
{
return sysconf(_SC_CLK_TCK);
}
static void alloc_struct(int cpus)
{
int i;
@@ -873,7 +867,7 @@ int mpstat_main(int UNUSED_PARAM argc, char **argv)
G.cpu_nr = get_cpu_count();
/* Get number of clock ticks per sec */
G.hz = get_hz();
G.hz = bb_clk_tck();
/* Calculate number of interrupts per processor */
G.irqcpu_nr = get_irqcpu_nr(PROCFS_INTERRUPTS, NR_IRQS) + NR_IRQCPU_PREALLOC;