X-Git-Url: http://git.linux-vserver.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fvserver-stat.c;h=43e15f372b6594819b55102d452fba3bf9bd9df7;hb=148ab3024621f97b9cf95091657db2448098bc66;hp=6d78f9d1dc837018b6817789d5e86c458a046bcb;hpb=9c78378bebc1a9f3d400f422df8ede9efea57dea;p=util-vserver.git diff --git a/src/vserver-stat.c b/src/vserver-stat.c index 6d78f9d..43e15f3 100644 --- a/src/vserver-stat.c +++ b/src/vserver-stat.c @@ -24,6 +24,7 @@ #include "vserver.h" #include "util.h" #include "internal.h" +#include "pathconfig.h" #include @@ -42,6 +43,7 @@ #include #include #include +#include #define ENSC_WRAPPERS_DIRENT 1 #define ENSC_WRAPPERS_VSERVER 1 @@ -50,6 +52,7 @@ #include "wrappers.h" #define PROC_DIR_NAME "/proc" +#define PROC_VIRT_DIR_NAME "/proc/virtual" #define CTX_DIR_NAME "/var/run/vservers/" #define CTX_NAME_MAX_LEN 50 @@ -65,9 +68,9 @@ static unsigned long pagesize=0x42; struct XidData { xid_t xid; - int process_count; - int VmSize_total; - int VmRSS_total; + unsigned int process_count; + uint64_t VmSize_total; + uint64_t VmRSS_total; uint64_t start_time_oldest; uint64_t stime_total, utime_total; @@ -114,7 +117,7 @@ showHelp(char const *cmd) WRITE_STR(1, cmd); WRITE_MSG(1, "\n" - "Show informations about all the active context.\n\n" + "Show information about all active contexts.\n\n" " CTX# Context number\n" " #0 = root context\n" " #1 = monitoring context\n" @@ -187,6 +190,12 @@ getUptime() return secs*1000 + msecs; } +static inline uint64_t +toMsec(uint64_t v) +{ + return v*1000llu/hertz; +} + static int cmpData(void const *xid_v, void const *map_v) { @@ -223,10 +232,226 @@ registerXid(struct Vector *vec, struct process_info *process) res->start_time_oldest = MIN(res->start_time_oldest, process->start_time); } -static inline uint64_t -toMsec(uint64_t v) +static void +registerXidVstat(struct Vector *vec, unsigned long xid_l) { - return v*1000llu/hertz; + xid_t xid = (xid_t) xid_l; + struct XidData *res; + struct vc_rlimit_stat limit[3]; + struct vc_virt_stat vstat; + struct vc_sched_info sched; + int cpu; + + res = Vector_search(vec, &xid, cmpData); + if (res!=0) { + WRITE_MSG(2, "Duplicate xid found?!\n"); + return; + } + if (vc_virt_stat(xid, &vstat) == -1) { + perror("vc_virt_stat()"); + return; + } + if (vc_rlimit_stat(xid, RLIMIT_NPROC, &limit[0]) == -1) { + perror("vc_rlimit_stat(RLIMIT_NRPOC)"); + return; + } + if (vc_rlimit_stat(xid, RLIMIT_AS, &limit[1]) == -1) { + perror("vc_rlimit_stat(RLIMIT_AS)"); + return; + } + if (vc_rlimit_stat(xid, RLIMIT_RSS, &limit[2]) == -1) { + perror("vc_rlimit_stat(RLIMIT_RSS)"); + return; + } + + res = Vector_insert(vec, &xid, cmpData); + res->xid = xid; + + res->process_count = limit[0].value; + res->VmSize_total = limit[1].value * pagesize; + res->VmRSS_total = limit[2].value; + res->start_time_oldest= getUptime() - vstat.uptime/1000000; + + res->utime_total = 0; + res->stime_total = 0; + // XXX: arbitrary CPU limit. + for (cpu = 0; cpu < 1024; cpu++) { + sched.cpu_id = cpu; + sched.bucket_id = 0; + if (vc_sched_info(xid, &sched) == -1) + break; + + res->utime_total += sched.user_msec; + res->stime_total += sched.sys_msec; + } +} + +static void +registerXidCgroups(struct Vector *vec, struct process_info *process) +{ + xid_t xid = (xid_t) process->s_context; + struct XidData *res; + + switch (vc_getXIDType(xid)) { + case vcTYPE_STATIC: + case vcTYPE_DYNAMIC: + break; + default: + return; + } + + res = Vector_search(vec, &xid, cmpData); + if (res == 0) { + struct vc_rlimit_stat limit; + struct vc_virt_stat vstat; + struct vc_sched_info sched; + int cpu; + char vhi_name[65], + filename[128], + cgroup[65], + buf[30]; + int fd; + ssize_t cgroup_len; + unsigned long long rss = 0; + char *endptr; + size_t len; + uint64_t stime_total, utime_total; + + + if (vc_virt_stat(xid, &vstat) == -1) { + perror("vc_virt_stat()"); + return; + } + if (vc_rlimit_stat(xid, RLIMIT_NPROC, &limit) == -1) { + perror("vc_rlimit_stat(RLIMIT_NRPOC)"); + return; + } + if (vc_get_vhi_name(xid, vcVHI_CONTEXT, vhi_name, sizeof(vhi_name)) == -1) { + perror("vc_get_vhi_name(CONTEXT)"); + return; + } + + if ((fd = open(DEFAULTCONFDIR "/cgroup/mnt", O_RDONLY)) == -1) { + strcpy(cgroup, "/dev/cgroup/"); + cgroup_len = sizeof("/dev/cgroup"); + } + else { + cgroup_len = read(fd, cgroup, sizeof(cgroup)); + if (cgroup_len == -1) { + perror("read(cgroup/mnt)"); + return; + } + close(fd); + cgroup[cgroup_len] = '/'; + cgroup_len += 1; + cgroup[cgroup_len] = 0; + } + + len = strlen(vhi_name); + if ((len + sizeof("/cgroup/name")) >= sizeof(filename)) { + WRITE_MSG(2, "too long context name: "); + WRITE_STR(2, vhi_name); + WRITE_MSG(2, "\n"); + return; + } + strcpy(filename, vhi_name); + strcpy(filename + len, "/cgroup/name"); + + if ((fd = open(filename, O_RDONLY)) == -1) { + char *dir = strrchr(vhi_name, '/'); + if (dir == NULL) { + WRITE_MSG(2, "invalid context name: "); + WRITE_STR(2, dir); + WRITE_MSG(2, "\n"); + return; + } + len = strlen(dir); + if ((len + cgroup_len) >= sizeof(cgroup)) { + WRITE_MSG(2, "cgroup name too long: "); + WRITE_STR(2, dir); + WRITE_MSG(2, "\n"); + return; + } + strcpy(cgroup + cgroup_len, dir); + cgroup_len += len; + } + else { + ssize_t ret; + ret = read(fd, cgroup + cgroup_len, sizeof(cgroup) - cgroup_len); + if (ret == -1) { + perror("read(cgroup/name)"); + return; + } + cgroup_len += ret; + close(fd); + } + + if ((cgroup_len + sizeof("/memory.usage_in_bytes")) > sizeof(filename)) { + WRITE_MSG(2, "cgroup name too long: "); + WRITE_STR(2, cgroup); + WRITE_MSG(2, "\n"); + return; + } + strcpy(filename, cgroup); + strcpy(filename + cgroup_len, "/memory.usage_in_bytes"); + + if ((fd = open(filename, O_RDONLY)) == -1) + perror("open(memory.usage_in_bytes)"); + else { + if (read(fd, buf, sizeof(buf)) == -1) { + perror("read(memory.usage_in_bytes)"); + return; + } + close(fd); + if ((rss = strtoull(buf, &endptr, 0)) == ULLONG_MAX || + (*endptr != '\n' && *endptr != '\0')) { + perror("strtoull(memory.usage_in_bytes)"); + return; + } + } + + strcpy(filename, cgroup); + strcpy(filename + cgroup_len, "/cpuacct.stat"); + + if ((fd = open(filename, O_RDONLY)) == -1) { + utime_total = 0; + stime_total = 0; + // XXX: arbitrary CPU limit. + for (cpu = 0; cpu < 1024; cpu++) { + sched.cpu_id = cpu; + sched.bucket_id = 0; + if (vc_sched_info(xid, &sched) == -1) + break; + + utime_total += sched.user_msec; + stime_total += sched.sys_msec; + } + } + else { + if (read(fd, buf, sizeof(buf)) == -1) { + perror("read(cpuacct.stat)"); + return; + } + close(fd); + + if (sscanf(buf, "user %llu\nsystem %llu\n", &utime_total, &stime_total) != 2) { + perror("sscanf(cpuacct.stat)"); + return; + } + } + + res = Vector_insert(vec, &xid, cmpData); + res->xid = xid; + + res->process_count = limit.value; + res->VmRSS_total = rss / 4096; + res->start_time_oldest= getUptime() - vstat.uptime/1000000; + + res->utime_total = toMsec(utime_total); + res->stime_total = toMsec(stime_total); + } + + res->VmSize_total += process->VmSize; } @@ -543,7 +768,7 @@ int main(int argc, char **argv) default : WRITE_MSG(2, "Try '"); WRITE_STR(2, argv[0]); - WRITE_MSG(2, " --help\" for more information.\n"); + WRITE_MSG(2, " --help' for more information.\n"); return EXIT_FAILURE; break; } @@ -557,36 +782,57 @@ int main(int argc, char **argv) if (hertz==0x42) initHertz(); if (pagesize==0x42) initPageSize(); - my_pid = getpid(); + Vector_init(&xid_data, sizeof(struct XidData)); - if (!switchToWatchXid(&errptr)) { - perror(errptr); - exit(1); + if (vc_isSupported(vcFEATURE_VSTAT)) { + unsigned long xid; + Echdir(PROC_VIRT_DIR_NAME); + proc_dir = Eopendir("."); + while ((dir_entry = readdir(proc_dir)) != NULL) { + if (!isNumberUnsigned(dir_entry->d_name, &xid, false)) + continue; + + registerXidVstat(&xid_data, xid); + } + closedir(proc_dir); } + else { + void (*handler)(struct Vector *vec, struct process_info *process); + + my_pid = getpid(); - if (access("/proc/uptime",R_OK)==-1 && errno==ENOENT) - WRITE_MSG(2, + if (!switchToWatchXid(&errptr)) { + perror(errptr); + exit(1); + } + + if (access("/proc/uptime",R_OK)==-1 && errno==ENOENT) + WRITE_MSG(2, "WARNING: can not access /proc/uptime. Usually, this is caused by\n" " procfs-security. Please read the FAQ for more details\n" - " http://www.linux-vserver.org/index.php?page=Linux-Vserver+FAQ\n"); + " http://linux-vserver.org/Proc-Security\n"); - Vector_init(&xid_data, sizeof(struct XidData)); + if (vc_isSupported(vcFEATURE_MEMCG)) + handler = registerXidCgroups; + else + handler = registerXid; - Echdir(PROC_DIR_NAME); - proc_dir = Eopendir("."); - while ((dir_entry = readdir(proc_dir)) != NULL) - { + Echdir(PROC_DIR_NAME); + proc_dir = Eopendir("."); + while ((dir_entry = readdir(proc_dir)) != NULL) + { // select only process file - if (!isdigit(*dir_entry->d_name)) - continue; + if (!isdigit(*dir_entry->d_name)) + continue; - if (atoi(dir_entry->d_name) != my_pid) { - struct process_info * info = get_process_info(dir_entry->d_name); - if (info) - registerXid(&xid_data, info); + if (atoi(dir_entry->d_name) != my_pid) { + struct process_info * info = get_process_info(dir_entry->d_name); + if (info) + handler(&xid_data, info); + } } + closedir(proc_dir); } - closedir(proc_dir); Vector_foreach(&xid_data, fillName, 0);