diff options
Diffstat (limited to 'src/VBox/Additions/common/VBoxService/VBoxServiceStats.cpp')
| -rw-r--r-- | src/VBox/Additions/common/VBoxService/VBoxServiceStats.cpp | 747 |
1 files changed, 747 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxService/VBoxServiceStats.cpp b/src/VBox/Additions/common/VBoxService/VBoxServiceStats.cpp new file mode 100644 index 00000000..22c11ca6 --- /dev/null +++ b/src/VBox/Additions/common/VBoxService/VBoxServiceStats.cpp @@ -0,0 +1,747 @@ +/* $Id: VBoxServiceStats.cpp $ */ +/** @file + * VBoxStats - Guest statistics notification + */ + +/* + * Copyright (C) 2006-2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + +/** @page pg_vgsvc_vmstats VBoxService - VM Statistics + * + * The VM statistics subservice helps out the performance collector API on the + * host side by providing metrics from inside the guest. + * + * See IPerformanceCollector, CollectorGuest and the "Guest/" submetrics that + * gets registered by Machine::i_registerMetrics in Main. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#if defined(RT_OS_WINDOWS) +# include <iprt/win/windows.h> +# include <psapi.h> +# include <winternl.h> + +#elif defined(RT_OS_LINUX) +# include <iprt/ctype.h> +# include <iprt/stream.h> +# include <unistd.h> + +#elif defined(RT_OS_SOLARIS) +# include <kstat.h> +# include <sys/sysinfo.h> +# include <unistd.h> +#else +/** @todo port me. */ + +#endif + +#include <iprt/assert.h> +#include <iprt/mem.h> +#include <iprt/ldr.h> +#include <VBox/param.h> +#include <iprt/semaphore.h> +#include <iprt/string.h> +#include <iprt/system.h> +#include <iprt/time.h> +#include <iprt/thread.h> +#include <VBox/err.h> +#include <VBox/VMMDev.h> /* For VMMDevReportGuestStats and indirectly VbglR3StatReport. */ +#include <VBox/VBoxGuestLib.h> + +#include "VBoxServiceInternal.h" +#include "VBoxServiceUtils.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +typedef struct VBOXSTATSCONTEXT +{ + RTMSINTERVAL cMsStatInterval; + + uint64_t au64LastCpuLoad_Idle[VMM_MAX_CPU_COUNT]; + uint64_t au64LastCpuLoad_Kernel[VMM_MAX_CPU_COUNT]; + uint64_t au64LastCpuLoad_User[VMM_MAX_CPU_COUNT]; + uint64_t au64LastCpuLoad_Nice[VMM_MAX_CPU_COUNT]; + +#ifdef RT_OS_WINDOWS + DECLCALLBACKMEMBER_EX(NTSTATUS, WINAPI, pfnNtQuerySystemInformation,(SYSTEM_INFORMATION_CLASS SystemInformationClass, + PVOID SystemInformation, ULONG SystemInformationLength, + PULONG ReturnLength)); + DECLCALLBACKMEMBER_EX(void, WINAPI, pfnGlobalMemoryStatusEx,(LPMEMORYSTATUSEX lpBuffer)); + DECLCALLBACKMEMBER_EX(BOOL, WINAPI, pfnGetPerformanceInfo,(PPERFORMANCE_INFORMATION pPerformanceInformation, DWORD cb)); +#endif +} VBOXSTATSCONTEXT; + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** Global data. */ +static VBOXSTATSCONTEXT g_VMStat = {0}; + +/** The semaphore we're blocking on. */ +static RTSEMEVENTMULTI g_VMStatEvent = NIL_RTSEMEVENTMULTI; + + +/** + * @interface_method_impl{VBOXSERVICE,pfnInit} + */ +static DECLCALLBACK(int) vgsvcVMStatsInit(void) +{ + VGSvcVerbose(3, "vgsvcVMStatsInit\n"); + + int rc = RTSemEventMultiCreate(&g_VMStatEvent); + AssertRCReturn(rc, rc); + + g_VMStat.cMsStatInterval = 0; /* default; update disabled */ + RT_ZERO(g_VMStat.au64LastCpuLoad_Idle); + RT_ZERO(g_VMStat.au64LastCpuLoad_Kernel); + RT_ZERO(g_VMStat.au64LastCpuLoad_User); + RT_ZERO(g_VMStat.au64LastCpuLoad_Nice); + + rc = VbglR3StatQueryInterval(&g_VMStat.cMsStatInterval); + if (RT_SUCCESS(rc)) + VGSvcVerbose(3, "vgsvcVMStatsInit: New statistics interval %u seconds\n", g_VMStat.cMsStatInterval); + else + VGSvcVerbose(3, "vgsvcVMStatsInit: DeviceIoControl failed with %d\n", rc); + +#ifdef RT_OS_WINDOWS + /* NtQuerySystemInformation might be dropped in future releases, so load + it dynamically as per Microsoft's recommendation. */ + *(void **)&g_VMStat.pfnNtQuerySystemInformation = RTLdrGetSystemSymbol("ntdll.dll", "NtQuerySystemInformation"); + if (g_VMStat.pfnNtQuerySystemInformation) + VGSvcVerbose(3, "vgsvcVMStatsInit: g_VMStat.pfnNtQuerySystemInformation = %x\n", g_VMStat.pfnNtQuerySystemInformation); + else + { + VGSvcVerbose(3, "vgsvcVMStatsInit: ntdll.NtQuerySystemInformation not found!\n"); + return VERR_SERVICE_DISABLED; + } + + /* GlobalMemoryStatus is win2k and up, so load it dynamically */ + *(void **)&g_VMStat.pfnGlobalMemoryStatusEx = RTLdrGetSystemSymbol("kernel32.dll", "GlobalMemoryStatusEx"); + if (g_VMStat.pfnGlobalMemoryStatusEx) + VGSvcVerbose(3, "vgsvcVMStatsInit: g_VMStat.GlobalMemoryStatusEx = %x\n", g_VMStat.pfnGlobalMemoryStatusEx); + else + { + /** @todo Now fails in NT4; do we care? */ + VGSvcVerbose(3, "vgsvcVMStatsInit: kernel32.GlobalMemoryStatusEx not found!\n"); + return VERR_SERVICE_DISABLED; + } + + /* GetPerformanceInfo is xp and up, so load it dynamically */ + *(void **)&g_VMStat.pfnGetPerformanceInfo = RTLdrGetSystemSymbol("psapi.dll", "GetPerformanceInfo"); + if (g_VMStat.pfnGetPerformanceInfo) + VGSvcVerbose(3, "vgsvcVMStatsInit: g_VMStat.pfnGetPerformanceInfo= %x\n", g_VMStat.pfnGetPerformanceInfo); +#endif /* RT_OS_WINDOWS */ + + return VINF_SUCCESS; +} + + +/** + * Gathers VM statistics and reports them to the host. + */ +static void vgsvcVMStatsReport(void) +{ +#if defined(RT_OS_WINDOWS) + Assert(g_VMStat.pfnGlobalMemoryStatusEx && g_VMStat.pfnNtQuerySystemInformation); + if ( !g_VMStat.pfnGlobalMemoryStatusEx + || !g_VMStat.pfnNtQuerySystemInformation) + return; + + /* Clear the report so we don't report garbage should NtQuerySystemInformation + behave in an unexpected manner. */ + VMMDevReportGuestStats req; + RT_ZERO(req); + + /* Query and report guest statistics */ + SYSTEM_INFO systemInfo; + GetSystemInfo(&systemInfo); + + MEMORYSTATUSEX memStatus; + memStatus.dwLength = sizeof(memStatus); + g_VMStat.pfnGlobalMemoryStatusEx(&memStatus); + + req.guestStats.u32PageSize = systemInfo.dwPageSize; + req.guestStats.u32PhysMemTotal = (uint32_t)(memStatus.ullTotalPhys / _4K); + req.guestStats.u32PhysMemAvail = (uint32_t)(memStatus.ullAvailPhys / _4K); + /* The current size of the committed memory limit, in bytes. This is physical + memory plus the size of the page file, minus a small overhead. */ + req.guestStats.u32PageFileSize = (uint32_t)(memStatus.ullTotalPageFile / _4K) - req.guestStats.u32PhysMemTotal; + req.guestStats.u32MemoryLoad = memStatus.dwMemoryLoad; + req.guestStats.u32StatCaps = VBOX_GUEST_STAT_PHYS_MEM_TOTAL + | VBOX_GUEST_STAT_PHYS_MEM_AVAIL + | VBOX_GUEST_STAT_PAGE_FILE_SIZE + | VBOX_GUEST_STAT_MEMORY_LOAD; +# ifdef VBOX_WITH_MEMBALLOON + req.guestStats.u32PhysMemBalloon = VGSvcBalloonQueryPages(_4K); + req.guestStats.u32StatCaps |= VBOX_GUEST_STAT_PHYS_MEM_BALLOON; +# else + req.guestStats.u32PhysMemBalloon = 0; +# endif + + if (g_VMStat.pfnGetPerformanceInfo) + { + PERFORMANCE_INFORMATION perfInfo; + + if (g_VMStat.pfnGetPerformanceInfo(&perfInfo, sizeof(perfInfo))) + { + req.guestStats.u32Processes = perfInfo.ProcessCount; + req.guestStats.u32Threads = perfInfo.ThreadCount; + req.guestStats.u32Handles = perfInfo.HandleCount; + req.guestStats.u32MemCommitTotal = perfInfo.CommitTotal; /* already in pages */ + req.guestStats.u32MemKernelTotal = perfInfo.KernelTotal; /* already in pages */ + req.guestStats.u32MemKernelPaged = perfInfo.KernelPaged; /* already in pages */ + req.guestStats.u32MemKernelNonPaged = perfInfo.KernelNonpaged; /* already in pages */ + req.guestStats.u32MemSystemCache = perfInfo.SystemCache; /* already in pages */ + req.guestStats.u32StatCaps |= VBOX_GUEST_STAT_PROCESSES | VBOX_GUEST_STAT_THREADS | VBOX_GUEST_STAT_HANDLES + | VBOX_GUEST_STAT_MEM_COMMIT_TOTAL | VBOX_GUEST_STAT_MEM_KERNEL_TOTAL + | VBOX_GUEST_STAT_MEM_KERNEL_PAGED | VBOX_GUEST_STAT_MEM_KERNEL_NONPAGED + | VBOX_GUEST_STAT_MEM_SYSTEM_CACHE; + } + else + VGSvcVerbose(3, "vgsvcVMStatsReport: GetPerformanceInfo failed with %d\n", GetLastError()); + } + + /* Query CPU load information */ + uint32_t cbStruct = systemInfo.dwNumberOfProcessors * sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION); + PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION pProcInfo; + pProcInfo = (PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION)RTMemAlloc(cbStruct); + if (!pProcInfo) + return; + + /* Unfortunately GetSystemTimes is XP SP1 and up only, so we need to use the semi-undocumented NtQuerySystemInformation */ + bool fCpuInfoAvail = false; + DWORD cbReturned; + NTSTATUS rcNt = g_VMStat.pfnNtQuerySystemInformation(SystemProcessorPerformanceInformation, pProcInfo, cbStruct, &cbReturned); + if ( !rcNt + && cbReturned == cbStruct) + { + for (uint32_t i = 0; i < systemInfo.dwNumberOfProcessors; i++) + { + if (i >= VMM_MAX_CPU_COUNT) + { + VGSvcVerbose(3, "vgsvcVMStatsReport: skipping information for CPUs %u..%u\n", i, systemInfo.dwNumberOfProcessors); + break; + } + + if (g_VMStat.au64LastCpuLoad_Kernel[i] == 0) + { + /* first time */ + g_VMStat.au64LastCpuLoad_Idle[i] = pProcInfo[i].IdleTime.QuadPart; + g_VMStat.au64LastCpuLoad_Kernel[i] = pProcInfo[i].KernelTime.QuadPart; + g_VMStat.au64LastCpuLoad_User[i] = pProcInfo[i].UserTime.QuadPart; + + Sleep(250); + + rcNt = g_VMStat.pfnNtQuerySystemInformation(SystemProcessorPerformanceInformation, pProcInfo, cbStruct, &cbReturned); + Assert(!rcNt); + } + + uint64_t deltaIdle = (pProcInfo[i].IdleTime.QuadPart - g_VMStat.au64LastCpuLoad_Idle[i]); + uint64_t deltaKernel = (pProcInfo[i].KernelTime.QuadPart - g_VMStat.au64LastCpuLoad_Kernel[i]); + uint64_t deltaUser = (pProcInfo[i].UserTime.QuadPart - g_VMStat.au64LastCpuLoad_User[i]); + deltaKernel -= deltaIdle; /* idle time is added to kernel time */ + uint64_t ullTotalTime = deltaIdle + deltaKernel + deltaUser; + if (ullTotalTime == 0) /* Prevent division through zero. */ + ullTotalTime = 1; + + req.guestStats.u32CpuLoad_Idle = (uint32_t)(deltaIdle * 100 / ullTotalTime); + req.guestStats.u32CpuLoad_Kernel = (uint32_t)(deltaKernel* 100 / ullTotalTime); + req.guestStats.u32CpuLoad_User = (uint32_t)(deltaUser * 100 / ullTotalTime); + + req.guestStats.u32StatCaps |= VBOX_GUEST_STAT_CPU_LOAD_IDLE + | VBOX_GUEST_STAT_CPU_LOAD_KERNEL + | VBOX_GUEST_STAT_CPU_LOAD_USER; + req.guestStats.u32CpuId = i; + fCpuInfoAvail = true; + int rc = VbglR3StatReport(&req); + if (RT_SUCCESS(rc)) + VGSvcVerbose(3, "vgsvcVMStatsReport: new statistics (CPU %u) reported successfully!\n", i); + else + VGSvcVerbose(3, "vgsvcVMStatsReport: VbglR3StatReport failed with rc=%Rrc\n", rc); + + g_VMStat.au64LastCpuLoad_Idle[i] = pProcInfo[i].IdleTime.QuadPart; + g_VMStat.au64LastCpuLoad_Kernel[i] = pProcInfo[i].KernelTime.QuadPart; + g_VMStat.au64LastCpuLoad_User[i] = pProcInfo[i].UserTime.QuadPart; + } + } + RTMemFree(pProcInfo); + + if (!fCpuInfoAvail) + { + VGSvcVerbose(3, "vgsvcVMStatsReport: CPU info not available!\n"); + int rc = VbglR3StatReport(&req); + if (RT_SUCCESS(rc)) + VGSvcVerbose(3, "vgsvcVMStatsReport: new statistics reported successfully!\n"); + else + VGSvcVerbose(3, "vgsvcVMStatsReport: stats report failed with rc=%Rrc\n", rc); + } + +#elif defined(RT_OS_LINUX) + VMMDevReportGuestStats req; + RT_ZERO(req); + PRTSTREAM pStrm; + char szLine[256]; + char *psz; + + int rc = RTStrmOpen("/proc/meminfo", "r", &pStrm); + if (RT_SUCCESS(rc)) + { + uint64_t u64Kb; + uint64_t u64Total = 0, u64Free = 0, u64Buffers = 0, u64Cached = 0, u64PagedTotal = 0; + for (;;) + { + rc = RTStrmGetLine(pStrm, szLine, sizeof(szLine)); + if (RT_FAILURE(rc)) + break; + if (strstr(szLine, "MemTotal:") == szLine) + { + rc = RTStrToUInt64Ex(RTStrStripL(&szLine[9]), &psz, 0, &u64Kb); + if (RT_SUCCESS(rc)) + u64Total = u64Kb * _1K; + } + else if (strstr(szLine, "MemFree:") == szLine) + { + rc = RTStrToUInt64Ex(RTStrStripL(&szLine[8]), &psz, 0, &u64Kb); + if (RT_SUCCESS(rc)) + u64Free = u64Kb * _1K; + } + else if (strstr(szLine, "Buffers:") == szLine) + { + rc = RTStrToUInt64Ex(RTStrStripL(&szLine[8]), &psz, 0, &u64Kb); + if (RT_SUCCESS(rc)) + u64Buffers = u64Kb * _1K; + } + else if (strstr(szLine, "Cached:") == szLine) + { + rc = RTStrToUInt64Ex(RTStrStripL(&szLine[7]), &psz, 0, &u64Kb); + if (RT_SUCCESS(rc)) + u64Cached = u64Kb * _1K; + } + else if (strstr(szLine, "SwapTotal:") == szLine) + { + rc = RTStrToUInt64Ex(RTStrStripL(&szLine[10]), &psz, 0, &u64Kb); + if (RT_SUCCESS(rc)) + u64PagedTotal = u64Kb * _1K; + } + } + req.guestStats.u32PhysMemTotal = u64Total / _4K; + req.guestStats.u32PhysMemAvail = (u64Free + u64Buffers + u64Cached) / _4K; + req.guestStats.u32MemSystemCache = (u64Buffers + u64Cached) / _4K; + req.guestStats.u32PageFileSize = u64PagedTotal / _4K; + RTStrmClose(pStrm); + } + else + VGSvcVerbose(3, "vgsvcVMStatsReport: memory info not available!\n"); + + req.guestStats.u32PageSize = getpagesize(); + req.guestStats.u32StatCaps = VBOX_GUEST_STAT_PHYS_MEM_TOTAL + | VBOX_GUEST_STAT_PHYS_MEM_AVAIL + | VBOX_GUEST_STAT_MEM_SYSTEM_CACHE + | VBOX_GUEST_STAT_PAGE_FILE_SIZE; +# ifdef VBOX_WITH_MEMBALLOON + req.guestStats.u32PhysMemBalloon = VGSvcBalloonQueryPages(_4K); + req.guestStats.u32StatCaps |= VBOX_GUEST_STAT_PHYS_MEM_BALLOON; +# else + req.guestStats.u32PhysMemBalloon = 0; +# endif + + + /** @todo req.guestStats.u32Threads */ + /** @todo req.guestStats.u32Processes */ + /* req.guestStats.u32Handles doesn't make sense here. */ + /** @todo req.guestStats.u32MemoryLoad */ + /** @todo req.guestStats.u32MemCommitTotal */ + /** @todo req.guestStats.u32MemKernelTotal */ + /** @todo req.guestStats.u32MemKernelPaged, make any sense? = u32MemKernelTotal? */ + /** @todo req.guestStats.u32MemKernelNonPaged, make any sense? = 0? */ + + bool fCpuInfoAvail = false; + rc = RTStrmOpen("/proc/stat", "r", &pStrm); + if (RT_SUCCESS(rc)) + { + for (;;) + { + rc = RTStrmGetLine(pStrm, szLine, sizeof(szLine)); + if (RT_FAILURE(rc)) + break; + if ( strstr(szLine, "cpu") == szLine + && strlen(szLine) > 3 + && RT_C_IS_DIGIT(szLine[3])) + { + uint32_t u32CpuId; + rc = RTStrToUInt32Ex(&szLine[3], &psz, 0, &u32CpuId); + if (u32CpuId < VMM_MAX_CPU_COUNT) + { + uint64_t u64User = 0; + if (RT_SUCCESS(rc)) + rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64User); + + uint64_t u64Nice = 0; + if (RT_SUCCESS(rc)) + rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64Nice); + + uint64_t u64System = 0; + if (RT_SUCCESS(rc)) + rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64System); + + uint64_t u64Idle = 0; + if (RT_SUCCESS(rc)) + rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64Idle); + + uint64_t u64DeltaIdle = u64Idle - g_VMStat.au64LastCpuLoad_Idle[u32CpuId]; + uint64_t u64DeltaSystem = u64System - g_VMStat.au64LastCpuLoad_Kernel[u32CpuId]; + uint64_t u64DeltaUser = u64User - g_VMStat.au64LastCpuLoad_User[u32CpuId]; + uint64_t u64DeltaNice = u64Nice - g_VMStat.au64LastCpuLoad_Nice[u32CpuId]; + + uint64_t u64DeltaAll = u64DeltaIdle + + u64DeltaSystem + + u64DeltaUser + + u64DeltaNice; + if (u64DeltaAll == 0) /* Prevent division through zero. */ + u64DeltaAll = 1; + + g_VMStat.au64LastCpuLoad_Idle[u32CpuId] = u64Idle; + g_VMStat.au64LastCpuLoad_Kernel[u32CpuId] = u64System; + g_VMStat.au64LastCpuLoad_User[u32CpuId] = u64User; + g_VMStat.au64LastCpuLoad_Nice[u32CpuId] = u64Nice; + + req.guestStats.u32CpuLoad_Idle = (uint32_t)(u64DeltaIdle * 100 / u64DeltaAll); + req.guestStats.u32CpuLoad_Kernel = (uint32_t)(u64DeltaSystem * 100 / u64DeltaAll); + req.guestStats.u32CpuLoad_User = (uint32_t)((u64DeltaUser + + u64DeltaNice) * 100 / u64DeltaAll); + req.guestStats.u32StatCaps |= VBOX_GUEST_STAT_CPU_LOAD_IDLE + | VBOX_GUEST_STAT_CPU_LOAD_KERNEL + | VBOX_GUEST_STAT_CPU_LOAD_USER; + req.guestStats.u32CpuId = u32CpuId; + fCpuInfoAvail = true; + rc = VbglR3StatReport(&req); + if (RT_SUCCESS(rc)) + VGSvcVerbose(3, "vgsvcVMStatsReport: new statistics (CPU %u) reported successfully!\n", u32CpuId); + else + VGSvcVerbose(3, "vgsvcVMStatsReport: stats report failed with rc=%Rrc\n", rc); + } + else + VGSvcVerbose(3, "vgsvcVMStatsReport: skipping information for CPU%u\n", u32CpuId); + } + } + RTStrmClose(pStrm); + } + if (!fCpuInfoAvail) + { + VGSvcVerbose(3, "vgsvcVMStatsReport: CPU info not available!\n"); + rc = VbglR3StatReport(&req); + if (RT_SUCCESS(rc)) + VGSvcVerbose(3, "vgsvcVMStatsReport: new statistics reported successfully!\n"); + else + VGSvcVerbose(3, "vgsvcVMStatsReport: stats report failed with rc=%Rrc\n", rc); + } + +#elif defined(RT_OS_SOLARIS) + VMMDevReportGuestStats req; + RT_ZERO(req); + kstat_ctl_t *pStatKern = kstat_open(); + if (pStatKern) + { + /* + * Memory statistics. + */ + uint64_t u64Total = 0, u64Free = 0, u64Buffers = 0, u64Cached = 0, u64PagedTotal = 0; + int rc = -1; + kstat_t *pStatPages = kstat_lookup(pStatKern, (char *)"unix", 0 /* instance */, (char *)"system_pages"); + if (pStatPages) + { + rc = kstat_read(pStatKern, pStatPages, NULL /* optional-copy-buf */); + if (rc != -1) + { + kstat_named_t *pStat = NULL; + pStat = (kstat_named_t *)kstat_data_lookup(pStatPages, (char *)"pagestotal"); + if (pStat) + u64Total = pStat->value.ul; + + pStat = (kstat_named_t *)kstat_data_lookup(pStatPages, (char *)"freemem"); + if (pStat) + u64Free = pStat->value.ul; + } + } + + kstat_t *pStatZFS = kstat_lookup(pStatKern, (char *)"zfs", 0 /* instance */, (char *)"arcstats"); + if (pStatZFS) + { + rc = kstat_read(pStatKern, pStatZFS, NULL /* optional-copy-buf */); + if (rc != -1) + { + kstat_named_t *pStat = (kstat_named_t *)kstat_data_lookup(pStatZFS, (char *)"size"); + if (pStat) + u64Cached = pStat->value.ul; + } + } + + /* + * The vminfo are accumulative counters updated every "N" ticks. Let's get the + * number of stat updates so far and use that to divide the swap counter. + */ + kstat_t *pStatInfo = kstat_lookup(pStatKern, (char *)"unix", 0 /* instance */, (char *)"sysinfo"); + if (pStatInfo) + { + sysinfo_t SysInfo; + rc = kstat_read(pStatKern, pStatInfo, &SysInfo); + if (rc != -1) + { + kstat_t *pStatVMInfo = kstat_lookup(pStatKern, (char *)"unix", 0 /* instance */, (char *)"vminfo"); + if (pStatVMInfo) + { + vminfo_t VMInfo; + rc = kstat_read(pStatKern, pStatVMInfo, &VMInfo); + if (rc != -1) + { + Assert(SysInfo.updates != 0); + u64PagedTotal = VMInfo.swap_avail / SysInfo.updates; + } + } + } + } + + req.guestStats.u32PhysMemTotal = u64Total; /* already in pages */ + req.guestStats.u32PhysMemAvail = u64Free; /* already in pages */ + req.guestStats.u32MemSystemCache = u64Cached / _4K; + req.guestStats.u32PageFileSize = u64PagedTotal; /* already in pages */ + /** @todo req.guestStats.u32Threads */ + /** @todo req.guestStats.u32Processes */ + /** @todo req.guestStats.u32Handles -- ??? */ + /** @todo req.guestStats.u32MemoryLoad */ + /** @todo req.guestStats.u32MemCommitTotal */ + /** @todo req.guestStats.u32MemKernelTotal */ + /** @todo req.guestStats.u32MemKernelPaged */ + /** @todo req.guestStats.u32MemKernelNonPaged */ + req.guestStats.u32PageSize = getpagesize(); + + req.guestStats.u32StatCaps = VBOX_GUEST_STAT_PHYS_MEM_TOTAL + | VBOX_GUEST_STAT_PHYS_MEM_AVAIL + | VBOX_GUEST_STAT_MEM_SYSTEM_CACHE + | VBOX_GUEST_STAT_PAGE_FILE_SIZE; +# ifdef VBOX_WITH_MEMBALLOON + req.guestStats.u32PhysMemBalloon = VGSvcBalloonQueryPages(_4K); + req.guestStats.u32StatCaps |= VBOX_GUEST_STAT_PHYS_MEM_BALLOON; +# else + req.guestStats.u32PhysMemBalloon = 0; +# endif + + /* + * CPU statistics. + */ + cpu_stat_t StatCPU; + RT_ZERO(StatCPU); + kstat_t *pStatNode = NULL; + uint32_t cCPUs = 0; + bool fCpuInfoAvail = false; + for (pStatNode = pStatKern->kc_chain; pStatNode != NULL; pStatNode = pStatNode->ks_next) + { + if (!strcmp(pStatNode->ks_module, "cpu_stat")) + { + rc = kstat_read(pStatKern, pStatNode, &StatCPU); + if (rc == -1) + break; + + if (cCPUs < VMM_MAX_CPU_COUNT) + { + uint64_t u64Idle = StatCPU.cpu_sysinfo.cpu[CPU_IDLE]; + uint64_t u64User = StatCPU.cpu_sysinfo.cpu[CPU_USER]; + uint64_t u64System = StatCPU.cpu_sysinfo.cpu[CPU_KERNEL]; + + uint64_t u64DeltaIdle = u64Idle - g_VMStat.au64LastCpuLoad_Idle[cCPUs]; + uint64_t u64DeltaSystem = u64System - g_VMStat.au64LastCpuLoad_Kernel[cCPUs]; + uint64_t u64DeltaUser = u64User - g_VMStat.au64LastCpuLoad_User[cCPUs]; + + uint64_t u64DeltaAll = u64DeltaIdle + u64DeltaSystem + u64DeltaUser; + if (u64DeltaAll == 0) /* Prevent division through zero. */ + u64DeltaAll = 1; + + g_VMStat.au64LastCpuLoad_Idle[cCPUs] = u64Idle; + g_VMStat.au64LastCpuLoad_Kernel[cCPUs] = u64System; + g_VMStat.au64LastCpuLoad_User[cCPUs] = u64User; + + req.guestStats.u32CpuId = cCPUs; + req.guestStats.u32CpuLoad_Idle = (uint32_t)(u64DeltaIdle * 100 / u64DeltaAll); + req.guestStats.u32CpuLoad_Kernel = (uint32_t)(u64DeltaSystem * 100 / u64DeltaAll); + req.guestStats.u32CpuLoad_User = (uint32_t)(u64DeltaUser * 100 / u64DeltaAll); + + req.guestStats.u32StatCaps |= VBOX_GUEST_STAT_CPU_LOAD_IDLE + | VBOX_GUEST_STAT_CPU_LOAD_KERNEL + | VBOX_GUEST_STAT_CPU_LOAD_USER; + fCpuInfoAvail = true; + rc = VbglR3StatReport(&req); + if (RT_SUCCESS(rc)) + VGSvcVerbose(3, "vgsvcVMStatsReport: new statistics (CPU %u) reported successfully!\n", cCPUs); + else + VGSvcVerbose(3, "vgsvcVMStatsReport: stats report failed with rc=%Rrc\n", rc); + cCPUs++; + } + else + VGSvcVerbose(3, "vgsvcVMStatsReport: skipping information for CPU%u\n", cCPUs); + } + } + + /* + * Report whatever statistics were collected. + */ + if (!fCpuInfoAvail) + { + VGSvcVerbose(3, "vgsvcVMStatsReport: CPU info not available!\n"); + rc = VbglR3StatReport(&req); + if (RT_SUCCESS(rc)) + VGSvcVerbose(3, "vgsvcVMStatsReport: new statistics reported successfully!\n"); + else + VGSvcVerbose(3, "vgsvcVMStatsReport: stats report failed with rc=%Rrc\n", rc); + } + + kstat_close(pStatKern); + } + +#else + /** @todo implement for other platforms. */ + +#endif +} + + +/** + * @interface_method_impl{VBOXSERVICE,pfnWorker} + */ +DECLCALLBACK(int) vgsvcVMStatsWorker(bool volatile *pfShutdown) +{ + int rc = VINF_SUCCESS; + + /* Start monitoring of the stat event change event. */ + rc = VbglR3CtlFilterMask(VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST, 0); + if (RT_FAILURE(rc)) + { + VGSvcVerbose(3, "vgsvcVMStatsWorker: VbglR3CtlFilterMask failed with %d\n", rc); + return rc; + } + + /* + * Tell the control thread that it can continue + * spawning services. + */ + RTThreadUserSignal(RTThreadSelf()); + + /* + * Now enter the loop retrieving runtime data continuously. + */ + for (;;) + { + uint32_t fEvents = 0; + RTMSINTERVAL cWaitMillies; + + /* Check if an update interval change is pending. */ + rc = VbglR3WaitEvent(VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST, 0 /* no wait */, &fEvents); + if ( RT_SUCCESS(rc) + && (fEvents & VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST)) + VbglR3StatQueryInterval(&g_VMStat.cMsStatInterval); + + if (g_VMStat.cMsStatInterval) + { + vgsvcVMStatsReport(); + cWaitMillies = g_VMStat.cMsStatInterval; + } + else + cWaitMillies = 3000; + + /* + * Block for a while. + * + * The event semaphore takes care of ignoring interruptions and it + * allows us to implement service wakeup later. + */ + if (*pfShutdown) + break; + int rc2 = RTSemEventMultiWait(g_VMStatEvent, cWaitMillies); + if (*pfShutdown) + break; + if (rc2 != VERR_TIMEOUT && RT_FAILURE(rc2)) + { + VGSvcError("vgsvcVMStatsWorker: RTSemEventMultiWait failed; rc2=%Rrc\n", rc2); + rc = rc2; + break; + } + } + + /* Cancel monitoring of the stat event change event. */ + rc = VbglR3CtlFilterMask(0, VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST); + if (RT_FAILURE(rc)) + VGSvcVerbose(3, "vgsvcVMStatsWorker: VbglR3CtlFilterMask failed with %d\n", rc); + + VGSvcVerbose(3, "VBoxStatsThread: finished statistics change request thread\n"); + return 0; +} + + +/** + * @interface_method_impl{VBOXSERVICE,pfnStop} + */ +static DECLCALLBACK(void) vgsvcVMStatsStop(void) +{ + RTSemEventMultiSignal(g_VMStatEvent); +} + + +/** + * @interface_method_impl{VBOXSERVICE,pfnTerm} + */ +static DECLCALLBACK(void) vgsvcVMStatsTerm(void) +{ + if (g_VMStatEvent != NIL_RTSEMEVENTMULTI) + { + RTSemEventMultiDestroy(g_VMStatEvent); + g_VMStatEvent = NIL_RTSEMEVENTMULTI; + } +} + + +/** + * The 'vminfo' service description. + */ +VBOXSERVICE g_VMStatistics = +{ + /* pszName. */ + "vmstats", + /* pszDescription. */ + "Virtual Machine Statistics", + /* pszUsage. */ + NULL, + /* pszOptions. */ + NULL, + /* methods */ + VGSvcDefaultPreInit, + VGSvcDefaultOption, + vgsvcVMStatsInit, + vgsvcVMStatsWorker, + vgsvcVMStatsStop, + vgsvcVMStatsTerm +}; + |