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htop/pcp/PCPProcess.h

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Add a platform for Performance Co-Pilot (PCP) metrics This introduces an initial platform for extracting metrics using the PCP performance metrics API - PMAPI(3). It can be used via the --enable-pcp=yes configure option. So far I've added support for live localhost metrics only, and only using pre-defined metrics already found in htop. If available, all sampling is performed by pmcd(1) - else, we fallback to htop doing the metric sampling itself (all below the PMAPI). When pmcd is used, it may be configured to run children with elevated privileges, so htop does not need to be setuid (authentication with pmcd is available). Additionally, the PMAPI allows us to support archives (for historical analysis and for automated regression tests in htop). We'll need platform-specific command line argument additions, which isn't yet feasible in htop (not difficult to add though). The goal of this first version is minimal impact in terms of modifying the htop codebase, to introduce key ideas in PCP (metric namespace, metadata, APIs and so on) and give us something to discuss, experiment with and build on.
2021-02-17 03:43:56 +00:00
#ifndef HEADER_PCPProcess
#define HEADER_PCPProcess
/*
htop - PCPProcess.h
(C) 2014 Hisham H. Muhammad
(C) 2020 htop dev team
(C) 2020-2021 Red Hat, Inc. All Rights Reserved.
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/
Various code tidyups based on review commentary from BenBE
2021-04-14 01:34:47 +00:00
#include "config.h" // IWYU pragma: keep
Add a platform for Performance Co-Pilot (PCP) metrics This introduces an initial platform for extracting metrics using the PCP performance metrics API - PMAPI(3). It can be used via the --enable-pcp=yes configure option. So far I've added support for live localhost metrics only, and only using pre-defined metrics already found in htop. If available, all sampling is performed by pmcd(1) - else, we fallback to htop doing the metric sampling itself (all below the PMAPI). When pmcd is used, it may be configured to run children with elevated privileges, so htop does not need to be setuid (authentication with pmcd is available). Additionally, the PMAPI allows us to support archives (for historical analysis and for automated regression tests in htop). We'll need platform-specific command line argument additions, which isn't yet feasible in htop (not difficult to add though). The goal of this first version is minimal impact in terms of modifying the htop codebase, to introduce key ideas in PCP (metric namespace, metadata, APIs and so on) and give us something to discuss, experiment with and build on.
2021-02-17 03:43:56 +00:00
#include <stdbool.h>
#include <sys/types.h>
#include "Object.h"
#include "Process.h"
#include "RichString.h"
#include "Settings.h"
Various code tidyups based on review commentary from BenBE
2021-04-14 01:34:47 +00:00
Add columns for process autogroup identifier and nice value Adds AGRP (autogroup) and ANI (autogroup nice) columns that report the information from /proc/PID/autogroup, as well as handlers for '{' and '}' to change the autogroup nice value. This is guarded by /proc/sys/kernel/sched_autogroup_enabled such that sampling and/or changing values wont be attempted unless the kernel feature is enabled. Fixes: #720
2021-08-06 06:45:30 +00:00
#define PROCESS_FLAG_LINUX_CGROUP 0x00000800
#define PROCESS_FLAG_LINUX_OOM 0x00001000
#define PROCESS_FLAG_LINUX_SMAPS 0x00002000
#define PROCESS_FLAG_LINUX_CTXT 0x00004000
#define PROCESS_FLAG_LINUX_SECATTR 0x00008000
#define PROCESS_FLAG_LINUX_AUTOGROUP 0x00080000
Add a platform for Performance Co-Pilot (PCP) metrics This introduces an initial platform for extracting metrics using the PCP performance metrics API - PMAPI(3). It can be used via the --enable-pcp=yes configure option. So far I've added support for live localhost metrics only, and only using pre-defined metrics already found in htop. If available, all sampling is performed by pmcd(1) - else, we fallback to htop doing the metric sampling itself (all below the PMAPI). When pmcd is used, it may be configured to run children with elevated privileges, so htop does not need to be setuid (authentication with pmcd is available). Additionally, the PMAPI allows us to support archives (for historical analysis and for automated regression tests in htop). We'll need platform-specific command line argument additions, which isn't yet feasible in htop (not difficult to add though). The goal of this first version is minimal impact in terms of modifying the htop codebase, to introduce key ideas in PCP (metric namespace, metadata, APIs and so on) and give us something to discuss, experiment with and build on.
2021-02-17 03:43:56 +00:00
typedef struct PCPProcess_ {
Process super;
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_pss;
long m_swap;
long m_psswp;
long m_trs;
long m_drs;
long m_lrs;
long m_dt;
/* Data read (in kilobytes) */
unsigned long long io_rchar;
/* Data written (in kilobytes) */
unsigned long long io_wchar;
/* Number of read(2) syscalls */
unsigned long long io_syscr;
/* Number of write(2) syscalls */
unsigned long long io_syscw;
/* Storage data read (in kilobytes) */
unsigned long long io_read_bytes;
/* Storage data written (in kilobytes) */
unsigned long long io_write_bytes;
/* Storage data cancelled (in kilobytes) */
unsigned long long io_cancelled_write_bytes;
/* Point in time of last io scan (in seconds elapsed since the Epoch) */
unsigned long long io_last_scan_time;
double io_rate_read_bps;
double io_rate_write_bps;
char* cgroup;
Add columns for process autogroup identifier and nice value Adds AGRP (autogroup) and ANI (autogroup nice) columns that report the information from /proc/PID/autogroup, as well as handlers for '{' and '}' to change the autogroup nice value. This is guarded by /proc/sys/kernel/sched_autogroup_enabled such that sampling and/or changing values wont be attempted unless the kernel feature is enabled. Fixes: #720
2021-08-06 06:45:30 +00:00
long int autogroup_id;
int autogroup_nice;
Add a platform for Performance Co-Pilot (PCP) metrics This introduces an initial platform for extracting metrics using the PCP performance metrics API - PMAPI(3). It can be used via the --enable-pcp=yes configure option. So far I've added support for live localhost metrics only, and only using pre-defined metrics already found in htop. If available, all sampling is performed by pmcd(1) - else, we fallback to htop doing the metric sampling itself (all below the PMAPI). When pmcd is used, it may be configured to run children with elevated privileges, so htop does not need to be setuid (authentication with pmcd is available). Additionally, the PMAPI allows us to support archives (for historical analysis and for automated regression tests in htop). We'll need platform-specific command line argument additions, which isn't yet feasible in htop (not difficult to add though). The goal of this first version is minimal impact in terms of modifying the htop codebase, to introduce key ideas in PCP (metric namespace, metadata, APIs and so on) and give us something to discuss, experiment with and build on.
2021-02-17 03:43:56 +00:00
unsigned int oom;
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;
unsigned long ctxt_total;
unsigned long ctxt_diff;
char* secattr;
unsigned long long int last_mlrs_calctime;
} PCPProcess;
extern const ProcessFieldData Process_fields[LAST_PROCESSFIELD];
extern const ProcessClass PCPProcess_class;
Process* PCPProcess_new(const Settings* settings);
void Process_delete(Object* cast);
bool Process_isThread(const Process* this);
#endif