/* htop - LinuxProcess.c (C) 2014 Hisham H. Muhammad Released under the GNU GPL, see the COPYING file in the source distribution for its full text. */ #include "Process.h" #include "ProcessList.h" #include "LinuxProcess.h" #include "Platform.h" #include "CRT.h" #include #include #include #include /*{ #define PROCESS_FLAG_LINUX_IOPRIO 0x0100 #define PROCESS_FLAG_LINUX_OPENVZ 0x0200 #define PROCESS_FLAG_LINUX_VSERVER 0x0400 #define PROCESS_FLAG_LINUX_CGROUP 0x0800 #define PROCESS_FLAG_LINUX_OOM 0x1000 typedef enum UnsupportedProcessFields { FLAGS = 9, ITREALVALUE = 20, VSIZE = 22, RSS = 23, RLIM = 24, STARTCODE = 25, ENDCODE = 26, STARTSTACK = 27, KSTKESP = 28, KSTKEIP = 29, SIGNAL = 30, BLOCKED = 31, SSIGIGNORE = 32, SIGCATCH = 33, WCHAN = 34, NSWAP = 35, CNSWAP = 36, EXIT_SIGNAL = 37, } UnsupportedProcessField; typedef enum LinuxProcessFields { CMINFLT = 11, CMAJFLT = 13, UTIME = 14, STIME = 15, CUTIME = 16, CSTIME = 17, M_SHARE = 41, M_TRS = 42, M_DRS = 43, M_LRS = 44, M_DT = 45, #ifdef HAVE_OPENVZ CTID = 100, VPID = 101, #endif #ifdef HAVE_VSERVER VXID = 102, #endif #ifdef HAVE_TASKSTATS RCHAR = 103, WCHAR = 104, SYSCR = 105, SYSCW = 106, RBYTES = 107, WBYTES = 108, CNCLWB = 109, IO_READ_RATE = 110, IO_WRITE_RATE = 111, IO_RATE = 112, #endif #ifdef HAVE_CGROUP CGROUP = 113, #endif OOM = 114, IO_PRIORITY = 115, #ifdef HAVE_DELAYACCT PERCENT_CPU_DELAY = 116, PERCENT_IO_DELAY = 117, PERCENT_SWAP_DELAY = 118, #endif LAST_PROCESSFIELD = 119, } LinuxProcessField; #include "IOPriority.h" typedef struct LinuxProcess_ { Process super; IOPriority ioPriority; unsigned long int cminflt; unsigned long int cmajflt; unsigned long long int utime; unsigned long long int stime; unsigned long long int cutime; unsigned long long int cstime; long m_share; long m_trs; long m_drs; long m_lrs; long m_dt; #ifdef HAVE_TASKSTATS unsigned long long io_rchar; unsigned long long io_wchar; unsigned long long io_syscr; unsigned long long io_syscw; unsigned long long io_read_bytes; unsigned long long io_write_bytes; unsigned long long io_cancelled_write_bytes; unsigned long long io_rate_read_time; unsigned long long io_rate_write_time; double io_rate_read_bps; double io_rate_write_bps; #endif #ifdef HAVE_OPENVZ unsigned int ctid; unsigned int vpid; #endif #ifdef HAVE_VSERVER unsigned int vxid; #endif #ifdef HAVE_CGROUP char* cgroup; #endif unsigned int oom; char* ttyDevice; #ifdef HAVE_DELAYACCT unsigned long long int delay_read_time; unsigned long long cpu_delay_total; unsigned long long blkio_delay_total; unsigned long long swapin_delay_total; float cpu_delay_percent; float blkio_delay_percent; float swapin_delay_percent; #endif } LinuxProcess; #ifndef Process_isKernelThread #define Process_isKernelThread(_process) (_process->pgrp == 0) #endif #ifndef Process_isUserlandThread #define Process_isUserlandThread(_process) (_process->pid != _process->tgid) #endif }*/ ProcessFieldData Process_fields[] = { [0] = { .name = "", .title = NULL, .description = NULL, .flags = 0, }, [PID] = { .name = "PID", .title = " PID ", .description = "Process/thread ID", .flags = 0, }, [COMM] = { .name = "Command", .title = "Command ", .description = "Command line", .flags = 0, }, [STATE] = { .name = "STATE", .title = "S ", .description = "Process state (S sleeping, R running, D disk, Z zombie, T traced, W paging, I idle)", .flags = 0, }, [PPID] = { .name = "PPID", .title = " PPID ", .description = "Parent process ID", .flags = 0, }, [PGRP] = { .name = "PGRP", .title = " PGRP ", .description = "Process group ID", .flags = 0, }, [SESSION] = { .name = "SESSION", .title = " SID ", .description = "Process's session ID", .flags = 0, }, [TTY_NR] = { .name = "TTY_NR", .title = "TTY ", .description = "Controlling terminal", .flags = 0, }, [TPGID] = { .name = "TPGID", .title = " TPGID ", .description = "Process ID of the fg process group of the controlling terminal", .flags = 0, }, [FLAGS] = { .name = "FLAGS", .title = NULL, .description = NULL, .flags = 0, }, [MINFLT] = { .name = "MINFLT", .title = " MINFLT ", .description = "Number of minor faults which have not required loading a memory page from disk", .flags = 0, }, [CMINFLT] = { .name = "CMINFLT", .title = " CMINFLT ", .description = "Children processes' minor faults", .flags = 0, }, [MAJFLT] = { .name = "MAJFLT", .title = " MAJFLT ", .description = "Number of major faults which have required loading a memory page from disk", .flags = 0, }, [CMAJFLT] = { .name = "CMAJFLT", .title = " CMAJFLT ", .description = "Children processes' major faults", .flags = 0, }, [UTIME] = { .name = "UTIME", .title = " UTIME+ ", .description = "User CPU time - time the process spent executing in user mode", .flags = 0, }, [STIME] = { .name = "STIME", .title = " STIME+ ", .description = "System CPU time - time the kernel spent running system calls for this process", .flags = 0, }, [CUTIME] = { .name = "CUTIME", .title = " CUTIME+ ", .description = "Children processes' user CPU time", .flags = 0, }, [CSTIME] = { .name = "CSTIME", .title = " CSTIME+ ", .description = "Children processes' system CPU time", .flags = 0, }, [PRIORITY] = { .name = "PRIORITY", .title = "PRI ", .description = "Kernel's internal priority for the process", .flags = 0, }, [NICE] = { .name = "NICE", .title = " NI ", .description = "Nice value (the higher the value, the more it lets other processes take priority)", .flags = 0, }, [ITREALVALUE] = { .name = "ITREALVALUE", .title = NULL, .description = NULL, .flags = 0, }, [STARTTIME] = { .name = "STARTTIME", .title = "START ", .description = "Time the process was started", .flags = 0, }, [VSIZE] = { .name = "VSIZE", .title = NULL, .description = NULL, .flags = 0, }, [RSS] = { .name = "RSS", .title = NULL, .description = NULL, .flags = 0, }, [RLIM] = { .name = "RLIM", .title = NULL, .description = NULL, .flags = 0, }, [STARTCODE] = { .name = "STARTCODE", .title = NULL, .description = NULL, .flags = 0, }, [ENDCODE] = { .name = "ENDCODE", .title = NULL, .description = NULL, .flags = 0, }, [STARTSTACK] = { .name = "STARTSTACK", .title = NULL, .description = NULL, .flags = 0, }, [KSTKESP] = { .name = "KSTKESP", .title = NULL, .description = NULL, .flags = 0, }, [KSTKEIP] = { .name = "KSTKEIP", .title = NULL, .description = NULL, .flags = 0, }, [SIGNAL] = { .name = "SIGNAL", .title = NULL, .description = NULL, .flags = 0, }, [BLOCKED] = { .name = "BLOCKED", .title = NULL, .description = NULL, .flags = 0, }, [SSIGIGNORE] = { .name = "SIGIGNORE", .title = NULL, .description = NULL, .flags = 0, }, [SIGCATCH] = { .name = "SIGCATCH", .title = NULL, .description = NULL, .flags = 0, }, [WCHAN] = { .name = "WCHAN", .title = NULL, .description = NULL, .flags = 0, }, [NSWAP] = { .name = "NSWAP", .title = NULL, .description = NULL, .flags = 0, }, [CNSWAP] = { .name = "CNSWAP", .title = NULL, .description = NULL, .flags = 0, }, [EXIT_SIGNAL] = { .name = "EXIT_SIGNAL", .title = NULL, .description = NULL, .flags = 0, }, [PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, }, [M_SIZE] = { .name = "M_SIZE", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, }, [M_RESIDENT] = { .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, }, [M_SHARE] = { .name = "M_SHARE", .title = " SHR ", .description = "Size of the process's shared pages", .flags = 0, }, [M_TRS] = { .name = "M_TRS", .title = " CODE ", .description = "Size of the text segment of the process", .flags = 0, }, [M_DRS] = { .name = "M_DRS", .title = " DATA ", .description = "Size of the data segment plus stack usage of the process", .flags = 0, }, [M_LRS] = { .name = "M_LRS", .title = " LIB ", .description = "The library size of the process", .flags = 0, }, [M_DT] = { .name = "M_DT", .title = " DIRTY ", .description = "Size of the dirty pages of the process", .flags = 0, }, [ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .flags = 0, }, [PERCENT_CPU] = { .name = "PERCENT_CPU", .title = "CPU% ", .description = "Percentage of the CPU time the process used in the last sampling", .flags = 0, }, [PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, }, [USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .flags = 0, }, [TIME] = { .name = "TIME", .title = " TIME+ ", .description = "Total time the process has spent in user and system time", .flags = 0, }, [NLWP] = { .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, }, [TGID] = { .name = "TGID", .title = " TGID ", .description = "Thread group ID (i.e. process ID)", .flags = 0, }, #ifdef HAVE_OPENVZ [CTID] = { .name = "CTID", .title = " CTID ", .description = "OpenVZ container ID (a.k.a. virtual environment ID)", .flags = PROCESS_FLAG_LINUX_OPENVZ, }, [VPID] = { .name = "VPID", .title = " VPID ", .description = "OpenVZ process ID", .flags = PROCESS_FLAG_LINUX_OPENVZ, }, #endif #ifdef HAVE_VSERVER [VXID] = { .name = "VXID", .title = " VXID ", .description = "VServer process ID", .flags = PROCESS_FLAG_LINUX_VSERVER, }, #endif #ifdef HAVE_TASKSTATS [RCHAR] = { .name = "RCHAR", .title = " RD_CHAR ", .description = "Number of bytes the process has read", .flags = PROCESS_FLAG_IO, }, [WCHAR] = { .name = "WCHAR", .title = " WR_CHAR ", .description = "Number of bytes the process has written", .flags = PROCESS_FLAG_IO, }, [SYSCR] = { .name = "SYSCR", .title = " RD_SYSC ", .description = "Number of read(2) syscalls for the process", .flags = PROCESS_FLAG_IO, }, [SYSCW] = { .name = "SYSCW", .title = " WR_SYSC ", .description = "Number of write(2) syscalls for the process", .flags = PROCESS_FLAG_IO, }, [RBYTES] = { .name = "RBYTES", .title = " IO_RBYTES ", .description = "Bytes of read(2) I/O for the process", .flags = PROCESS_FLAG_IO, }, [WBYTES] = { .name = "WBYTES", .title = " IO_WBYTES ", .description = "Bytes of write(2) I/O for the process", .flags = PROCESS_FLAG_IO, }, [CNCLWB] = { .name = "CNCLWB", .title = " IO_CANCEL ", .description = "Bytes of cancelled write(2) I/O", .flags = PROCESS_FLAG_IO, }, [IO_READ_RATE] = { .name = "IO_READ_RATE", .title = " DISK READ ", .description = "The I/O rate of read(2) in bytes per second for the process", .flags = PROCESS_FLAG_IO, }, [IO_WRITE_RATE] = { .name = "IO_WRITE_RATE", .title = " DISK WRITE ", .description = "The I/O rate of write(2) in bytes per second for the process", .flags = PROCESS_FLAG_IO, }, [IO_RATE] = { .name = "IO_RATE", .title = " DISK R/W ", .description = "Total I/O rate in bytes per second", .flags = PROCESS_FLAG_IO, }, #endif #ifdef HAVE_CGROUP [CGROUP] = { .name = "CGROUP", .title = " CGROUP ", .description = "Which cgroup the process is in", .flags = PROCESS_FLAG_LINUX_CGROUP, }, #endif [OOM] = { .name = "OOM", .title = " OOM ", .description = "OOM (Out-of-Memory) killer score", .flags = PROCESS_FLAG_LINUX_OOM, }, [IO_PRIORITY] = { .name = "IO_PRIORITY", .title = "IO ", .description = "I/O priority", .flags = PROCESS_FLAG_LINUX_IOPRIO, }, #ifdef HAVE_DELAYACCT [PERCENT_CPU_DELAY] = { .name = "PERCENT_CPU_DELAY", .title = "CPUD% ", .description = "CPU delay %", .flags = 0, }, [PERCENT_IO_DELAY] = { .name = "PERCENT_IO_DELAY", .title = "IOD% ", .description = "Block I/O delay %", .flags = 0, }, [PERCENT_SWAP_DELAY] = { .name = "PERCENT_SWAP_DELAY", .title = "SWAPD% ", .description = "Swapin delay %", .flags = 0, }, #endif [LAST_PROCESSFIELD] = { .name = "*** report bug! ***", .title = NULL, .description = NULL, .flags = 0, }, }; ProcessPidColumn Process_pidColumns[] = { { .id = PID, .label = "PID" }, { .id = PPID, .label = "PPID" }, #ifdef HAVE_OPENVZ { .id = VPID, .label = "VPID" }, #endif { .id = TPGID, .label = "TPGID" }, { .id = TGID, .label = "TGID" }, { .id = PGRP, .label = "PGRP" }, { .id = SESSION, .label = "SID" }, { .id = OOM, .label = "OOM" }, { .id = 0, .label = NULL }, }; ProcessClass LinuxProcess_class = { .super = { .extends = Class(Process), .display = Process_display, .delete = Process_delete, .compare = LinuxProcess_compare }, .writeField = (Process_WriteField) LinuxProcess_writeField, }; LinuxProcess* LinuxProcess_new(Settings* settings) { LinuxProcess* this = xCalloc(1, sizeof(LinuxProcess)); Object_setClass(this, Class(LinuxProcess)); Process_init(&this->super, settings); return this; } void Process_delete(Object* cast) { LinuxProcess* this = (LinuxProcess*) cast; Process_done((Process*)cast); #ifdef HAVE_CGROUP free(this->cgroup); #endif free(this->ttyDevice); free(this); } /* [1] Note that before kernel 2.6.26 a process that has not asked for an io priority formally uses "none" as scheduling class, but the io scheduler will treat such processes as if it were in the best effort class. The priority within the best effort class will be dynamically derived from the cpu nice level of the process: io_priority = (cpu_nice + 20) / 5. -- From ionice(1) man page */ #define LinuxProcess_effectiveIOPriority(p_) (IOPriority_class(p_->ioPriority) == IOPRIO_CLASS_NONE ? IOPriority_tuple(IOPRIO_CLASS_BE, (p_->super.nice + 20) / 5) : p_->ioPriority) IOPriority LinuxProcess_updateIOPriority(LinuxProcess* this) { IOPriority ioprio = 0; // Other OSes masquerading as Linux (NetBSD?) don't have this syscall #ifdef SYS_ioprio_get ioprio = syscall(SYS_ioprio_get, IOPRIO_WHO_PROCESS, this->super.pid); #endif this->ioPriority = ioprio; return ioprio; } bool LinuxProcess_setIOPriority(LinuxProcess* this, IOPriority ioprio) { // Other OSes masquerading as Linux (NetBSD?) don't have this syscall #ifdef SYS_ioprio_set syscall(SYS_ioprio_set, IOPRIO_WHO_PROCESS, this->super.pid, ioprio); #endif return (LinuxProcess_updateIOPriority(this) == ioprio); } #ifdef HAVE_DELAYACCT void LinuxProcess_printDelay(float delay_percent, char* buffer, int n) { if (delay_percent == -1LL) { xSnprintf(buffer, n, " N/A "); } else { xSnprintf(buffer, n, "%4.1f ", delay_percent); } } #endif void LinuxProcess_writeField(Process* this, RichString* str, ProcessField field) { LinuxProcess* lp = (LinuxProcess*) this; bool coloring = this->settings->highlightMegabytes; char buffer[256]; buffer[255] = '\0'; int attr = CRT_colors[DEFAULT_COLOR]; int n = sizeof(buffer) - 1; switch ((int)field) { case TTY_NR: { if (lp->ttyDevice) { xSnprintf(buffer, n, "%-9s", lp->ttyDevice + 5 /* skip "/dev/" */); } else { attr = CRT_colors[PROCESS_SHADOW]; xSnprintf(buffer, n, "? "); } break; } case CMINFLT: Process_colorNumber(str, lp->cminflt, coloring); return; case CMAJFLT: Process_colorNumber(str, lp->cmajflt, coloring); return; case M_DRS: Process_humanNumber(str, lp->m_drs * PAGE_SIZE_KB, coloring); return; case M_DT: Process_humanNumber(str, lp->m_dt * PAGE_SIZE_KB, coloring); return; case M_LRS: Process_humanNumber(str, lp->m_lrs * PAGE_SIZE_KB, coloring); return; case M_TRS: Process_humanNumber(str, lp->m_trs * PAGE_SIZE_KB, coloring); return; case M_SHARE: Process_humanNumber(str, lp->m_share * PAGE_SIZE_KB, coloring); return; case UTIME: Process_printTime(str, lp->utime); return; case STIME: Process_printTime(str, lp->stime); return; case CUTIME: Process_printTime(str, lp->cutime); return; case CSTIME: Process_printTime(str, lp->cstime); return; #ifdef HAVE_TASKSTATS case RCHAR: Process_colorNumber(str, lp->io_rchar, coloring); return; case WCHAR: Process_colorNumber(str, lp->io_wchar, coloring); return; case SYSCR: Process_colorNumber(str, lp->io_syscr, coloring); return; case SYSCW: Process_colorNumber(str, lp->io_syscw, coloring); return; case RBYTES: Process_colorNumber(str, lp->io_read_bytes, coloring); return; case WBYTES: Process_colorNumber(str, lp->io_write_bytes, coloring); return; case CNCLWB: Process_colorNumber(str, lp->io_cancelled_write_bytes, coloring); return; case IO_READ_RATE: Process_outputRate(str, buffer, n, lp->io_rate_read_bps, coloring); return; case IO_WRITE_RATE: Process_outputRate(str, buffer, n, lp->io_rate_write_bps, coloring); return; case IO_RATE: { double totalRate = (lp->io_rate_read_bps != -1) ? (lp->io_rate_read_bps + lp->io_rate_write_bps) : -1; Process_outputRate(str, buffer, n, totalRate, coloring); return; } #endif #ifdef HAVE_OPENVZ case CTID: xSnprintf(buffer, n, "%7u ", lp->ctid); break; case VPID: xSnprintf(buffer, n, Process_pidFormat, lp->vpid); break; #endif #ifdef HAVE_VSERVER case VXID: xSnprintf(buffer, n, "%5u ", lp->vxid); break; #endif #ifdef HAVE_CGROUP case CGROUP: xSnprintf(buffer, n, "%-10s ", lp->cgroup); break; #endif case OOM: xSnprintf(buffer, n, Process_pidFormat, lp->oom); break; case IO_PRIORITY: { int klass = IOPriority_class(lp->ioPriority); if (klass == IOPRIO_CLASS_NONE) { // see note [1] above xSnprintf(buffer, n, "B%1d ", (int) (this->nice + 20) / 5); } else if (klass == IOPRIO_CLASS_BE) { xSnprintf(buffer, n, "B%1d ", IOPriority_data(lp->ioPriority)); } else if (klass == IOPRIO_CLASS_RT) { attr = CRT_colors[PROCESS_HIGH_PRIORITY]; xSnprintf(buffer, n, "R%1d ", IOPriority_data(lp->ioPriority)); } else if (klass == IOPRIO_CLASS_IDLE) { attr = CRT_colors[PROCESS_LOW_PRIORITY]; xSnprintf(buffer, n, "id "); } else { xSnprintf(buffer, n, "?? "); } break; } #ifdef HAVE_DELAYACCT case PERCENT_CPU_DELAY: LinuxProcess_printDelay(lp->cpu_delay_percent, buffer, n); break; case PERCENT_IO_DELAY: LinuxProcess_printDelay(lp->blkio_delay_percent, buffer, n); break; case PERCENT_SWAP_DELAY: LinuxProcess_printDelay(lp->swapin_delay_percent, buffer, n); break; #endif default: Process_writeField((Process*)this, str, field); return; } RichString_append(str, attr, buffer); } long LinuxProcess_compare(const void* v1, const void* v2) { LinuxProcess *p1, *p2; Settings *settings = ((Process*)v1)->settings; if (settings->direction == 1) { p1 = (LinuxProcess*)v1; p2 = (LinuxProcess*)v2; } else { p2 = (LinuxProcess*)v1; p1 = (LinuxProcess*)v2; } long long diff; switch ((int)settings->sortKey) { case M_DRS: return (p2->m_drs - p1->m_drs); case M_DT: return (p2->m_dt - p1->m_dt); case M_LRS: return (p2->m_lrs - p1->m_lrs); case M_TRS: return (p2->m_trs - p1->m_trs); case M_SHARE: return (p2->m_share - p1->m_share); case UTIME: diff = p2->utime - p1->utime; goto test_diff; case CUTIME: diff = p2->cutime - p1->cutime; goto test_diff; case STIME: diff = p2->stime - p1->stime; goto test_diff; case CSTIME: diff = p2->cstime - p1->cstime; goto test_diff; #ifdef HAVE_TASKSTATS case RCHAR: diff = p2->io_rchar - p1->io_rchar; goto test_diff; case WCHAR: diff = p2->io_wchar - p1->io_wchar; goto test_diff; case SYSCR: diff = p2->io_syscr - p1->io_syscr; goto test_diff; case SYSCW: diff = p2->io_syscw - p1->io_syscw; goto test_diff; case RBYTES: diff = p2->io_read_bytes - p1->io_read_bytes; goto test_diff; case WBYTES: diff = p2->io_write_bytes - p1->io_write_bytes; goto test_diff; case CNCLWB: diff = p2->io_cancelled_write_bytes - p1->io_cancelled_write_bytes; goto test_diff; case IO_READ_RATE: diff = p2->io_rate_read_bps - p1->io_rate_read_bps; goto test_diff; case IO_WRITE_RATE: diff = p2->io_rate_write_bps - p1->io_rate_write_bps; goto test_diff; case IO_RATE: diff = (p2->io_rate_read_bps + p2->io_rate_write_bps) - (p1->io_rate_read_bps + p1->io_rate_write_bps); goto test_diff; #endif #ifdef HAVE_OPENVZ case CTID: return (p2->ctid - p1->ctid); case VPID: return (p2->vpid - p1->vpid); #endif #ifdef HAVE_VSERVER case VXID: return (p2->vxid - p1->vxid); #endif #ifdef HAVE_CGROUP case CGROUP: return strcmp(p1->cgroup ? p1->cgroup : "", p2->cgroup ? p2->cgroup : ""); #endif case OOM: return (p2->oom - p1->oom); #ifdef HAVE_DELAYACCT case PERCENT_CPU_DELAY: return (p2->cpu_delay_percent > p1->cpu_delay_percent ? 1 : -1); case PERCENT_IO_DELAY: return (p2->blkio_delay_percent > p1->blkio_delay_percent ? 1 : -1); case PERCENT_SWAP_DELAY: return (p2->swapin_delay_percent > p1->swapin_delay_percent ? 1 : -1); #endif case IO_PRIORITY: return LinuxProcess_effectiveIOPriority(p1) - LinuxProcess_effectiveIOPriority(p2); default: return Process_compare(v1, v2); } test_diff: return (diff > 0) ? 1 : (diff < 0 ? -1 : 0); } bool Process_isThread(Process* this) { return (Process_isUserlandThread(this) || Process_isKernelThread(this)); }