diff options
| -rw-r--r-- | qga/commands-posix.c | 89 | ||||
| -rw-r--r-- | qga/commands-win32.c | 6 | ||||
| -rw-r--r-- | qga/qapi-schema.json | 81 |
3 files changed, 176 insertions, 0 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 0469dc409d..f18530d85f 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -2893,6 +2893,90 @@ GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) return guest_get_diskstats(errp); } +GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) +{ + GuestCpuStatsList *head = NULL, **tail = &head; + const char *cpustats = "/proc/stat"; + int clk_tck = sysconf(_SC_CLK_TCK); + FILE *fp; + size_t n; + char *line = NULL; + + fp = fopen(cpustats, "r"); + if (fp == NULL) { + error_setg_errno(errp, errno, "open(\"%s\")", cpustats); + return NULL; + } + + while (getline(&line, &n, fp) != -1) { + GuestCpuStats *cpustat = NULL; + GuestLinuxCpuStats *linuxcpustat; + int i; + unsigned long user, system, idle, iowait, irq, softirq, steal, guest; + unsigned long nice, guest_nice; + char name[64]; + + i = sscanf(line, "%s %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu", + name, &user, &nice, &system, &idle, &iowait, &irq, &softirq, + &steal, &guest, &guest_nice); + + /* drop "cpu 1 2 3 ...", get "cpuX 1 2 3 ..." only */ + if ((i == EOF) || strncmp(name, "cpu", 3) || (name[3] == '\0')) { + continue; + } + + if (i < 5) { + slog("Parsing cpu stat from %s failed, see \"man proc\"", cpustats); + break; + } + + cpustat = g_new0(GuestCpuStats, 1); + cpustat->type = GUEST_CPU_STATS_TYPE_LINUX; + + linuxcpustat = &cpustat->u.q_linux; + linuxcpustat->cpu = atoi(&name[3]); + linuxcpustat->user = user * 1000 / clk_tck; + linuxcpustat->nice = nice * 1000 / clk_tck; + linuxcpustat->system = system * 1000 / clk_tck; + linuxcpustat->idle = idle * 1000 / clk_tck; + + if (i > 5) { + linuxcpustat->has_iowait = true; + linuxcpustat->iowait = iowait * 1000 / clk_tck; + } + + if (i > 6) { + linuxcpustat->has_irq = true; + linuxcpustat->irq = irq * 1000 / clk_tck; + linuxcpustat->has_softirq = true; + linuxcpustat->softirq = softirq * 1000 / clk_tck; + } + + if (i > 8) { + linuxcpustat->has_steal = true; + linuxcpustat->steal = steal * 1000 / clk_tck; + } + + if (i > 9) { + linuxcpustat->has_guest = true; + linuxcpustat->guest = guest * 1000 / clk_tck; + } + + if (i > 10) { + linuxcpustat->has_guest = true; + linuxcpustat->guest = guest * 1000 / clk_tck; + linuxcpustat->has_guestnice = true; + linuxcpustat->guestnice = guest_nice * 1000 / clk_tck; + } + + QAPI_LIST_APPEND(tail, cpustat); + } + + free(line); + fclose(fp); + return head; +} + #else /* defined(__linux__) */ void qmp_guest_suspend_disk(Error **errp) @@ -3247,6 +3331,11 @@ GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) return NULL; } +GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) +{ + error_setg(errp, QERR_UNSUPPORTED); + return NULL; +} #endif /* CONFIG_FSFREEZE */ diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 36f94c0f9c..7ed7664715 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -2543,3 +2543,9 @@ GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) error_setg(errp, QERR_UNSUPPORTED); return NULL; } + +GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) +{ + error_setg(errp, QERR_UNSUPPORTED); + return NULL; +} diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 9fa20e791b..869399ea1a 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -1576,3 +1576,84 @@ { 'command': 'guest-get-diskstats', 'returns': ['GuestDiskStatsInfo'] } + +## +# @GuestCpuStatsType: +# +# An enumeration of OS type +# +# Since: 7.1 +## +{ 'enum': 'GuestCpuStatsType', + 'data': [ 'linux' ] } + + +## +# @GuestLinuxCpuStats: +# +# CPU statistics of Linux +# +# @cpu: CPU index in guest OS +# +# @user: Time spent in user mode +# +# @nice: Time spent in user mode with low priority (nice) +# +# @system: Time spent in system mode +# +# @idle: Time spent in the idle task +# +# @iowait: Time waiting for I/O to complete (since Linux 2.5.41) +# +# @irq: Time servicing interrupts (since Linux 2.6.0-test4) +# +# @softirq: Time servicing softirqs (since Linux 2.6.0-test4) +# +# @steal: Stolen time by host (since Linux 2.6.11) +# +# @guest: ime spent running a virtual CPU for guest operating systems under +# the control of the Linux kernel (since Linux 2.6.24) +# +# @guestnice: Time spent running a niced guest (since Linux 2.6.33) +# +# Since: 7.1 +## +{ 'struct': 'GuestLinuxCpuStats', + 'data': {'cpu': 'int', + 'user': 'uint64', + 'nice': 'uint64', + 'system': 'uint64', + 'idle': 'uint64', + '*iowait': 'uint64', + '*irq': 'uint64', + '*softirq': 'uint64', + '*steal': 'uint64', + '*guest': 'uint64', + '*guestnice': 'uint64' + } } + +## +# @GuestCpuStats: +# +# Get statistics of each CPU in millisecond. +# +# - @linux: Linux style CPU statistics +# +# Since: 7.1 +## +{ 'union': 'GuestCpuStats', + 'base': { 'type': 'GuestCpuStatsType' }, + 'discriminator': 'type', + 'data': { 'linux': 'GuestLinuxCpuStats' } } + +## +# @guest-get-cpustats: +# +# Retrieve information about CPU stats. +# Returns: List of CPU stats of guest. +# +# Since: 7.1 +## +{ 'command': 'guest-get-cpustats', + 'returns': ['GuestCpuStats'] +} |