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crapectomy, add user-mode and S/390 arch, add kb_swap_cached

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albert 2002-05-28 02:30:40 +00:00
parent 19dbcfeaf0
commit 17bd2ac219
2 changed files with 13 additions and 8 deletions
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16
proc/sysinfo.c
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@ -108,6 +108,12 @@ int uptime(double *uptime_secs, double *idle_secs) {
* This code should work fine, even if Linus fixes the kernel to match his
* stated behavior. The code only fails in case of a partial conversion.
*
* Recent update: on some architectures, the 2.4 kernel provides an
* ELF note to indicate HZ. This may be for ARM or user-mode Linux
* support. This ought to be investigated. Note that sysconf() is still
* unreliable, because it doesn't return an error code when it is
* used with a kernel that doesn't support the ELF note. On some other
* architectures there may be a system call or sysctl() that will work.
*/
unsigned long Hertz;
static void init_Hertz_value(void) __attribute__((constructor));
@ -135,6 +141,8 @@ static void init_Hertz_value(void){
h = (unsigned long)( (double)jiffies/seconds/smp_num_cpus );
/* actual values used by 2.4 kernels: 32 64 100 128 1000 1024 1200 */
switch(h){
case 9 ... 11 : Hertz = 10; break; /* S/390 (sometimes) */
case 18 ... 22 : Hertz = 20; break; /* user-mode Linux */
case 30 ... 34 : Hertz = 32; break; /* ia64 emulator */
case 48 ... 52 : Hertz = 50; break;
case 58 ... 62 : Hertz = 60; break;
@ -143,16 +151,10 @@ static void init_Hertz_value(void){
case 124 ... 132 : Hertz = 128; break; /* MIPS, ARM */
case 195 ... 204 : Hertz = 200; break; /* normal << 1 */
case 253 ... 260 : Hertz = 256; break;
case 295 ... 304 : Hertz = 300; break; /* 3 cpus */
case 393 ... 408 : Hertz = 400; break; /* normal << 2 */
case 495 ... 504 : Hertz = 500; break; /* 5 cpus */
case 595 ... 604 : Hertz = 600; break; /* 6 cpus */
case 695 ... 704 : Hertz = 700; break; /* 7 cpus */
case 790 ... 808 : Hertz = 800; break; /* normal << 3 */
case 895 ... 904 : Hertz = 900; break; /* 9 cpus */
case 990 ... 1010 : Hertz = 1000; break; /* ARM */
case 1015 ... 1035 : Hertz = 1024; break; /* Alpha, ia64 */
case 1095 ... 1104 : Hertz = 1100; break; /* 11 cpus */
case 1180 ... 1220 : Hertz = 1200; break; /* Alpha */
default:
#ifdef HZ
@ -285,6 +287,7 @@ unsigned kb_active;
unsigned kb_inact_dirty;
unsigned kb_inact_clean;
unsigned kb_inact_target;
unsigned kb_swap_cached; /* late 2.4 only */
/* derived values */
unsigned kb_swap_used;
unsigned kb_main_used;
@ -309,6 +312,7 @@ void meminfo(void){
{"MemFree", &kb_main_free},
{"MemShared", &kb_main_shared},
{"MemTotal", &kb_main_total},
{"SwapCached", &kb_swap_cached},
{"SwapFree", &kb_swap_free},
{"SwapTotal", &kb_swap_total}
};

1
proc/sysinfo.h
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@ -31,6 +31,7 @@ extern unsigned kb_active;
extern unsigned kb_inact_dirty;
extern unsigned kb_inact_clean;
extern unsigned kb_inact_target;
extern unsigned kb_swap_cached; /* late 2.4 only */
/* derived values */
extern unsigned kb_swap_used;
extern unsigned kb_main_used;