diff options
| -rw-r--r-- | usr.bin/kstat/kstat.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/usr.bin/kstat/kstat.c b/usr.bin/kstat/kstat.c index e3b7e6a..2b0c52f 100644 --- a/usr.bin/kstat/kstat.c +++ b/usr.bin/kstat/kstat.c @@ -28,11 +28,35 @@ */ #include <sys/sched.h> +#include <sys/vmstat.h> #include <stdio.h> #include <unistd.h> #include <fcntl.h> static void +get_vm_stat(void) +{ + struct vm_stat vmstat; + int retval, fd; + + fd = open("/ctl/vm/stat", O_RDONLY); + if (fd < 0) { + printf("failed to open '/ctl/vm/stat'\n"); + return; + } + + retval = read(fd, &vmstat, sizeof(vmstat)); + if (retval <= 0) { + printf("failed to read vmstat\n"); + return; + } + + close(fd); + printf("memory available: %d MiB\n", vmstat.mem_avail); + printf("memory used: %d MiB\n", vmstat.mem_used); +} + +static void get_sched_stat(void) { struct sched_stat stat; @@ -76,5 +100,6 @@ int main(void) { get_sched_stat(); + get_vm_stat(); return 0; } |