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Merge branch 'hishamhm-pull-843'

This commit is contained in:
Nathan Scott 2020-08-19 17:47:38 +10:00
parent e9947acfc6 078c2ddde5
commit f9625cacf0
4 changed files with 111 additions and 3 deletions
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21
linux/LinuxProcess.c
View File

@ -24,6 +24,7 @@ in the source distribution for its full text.
#define PROCESS_FLAG_LINUX_VSERVER 0x0400
#define PROCESS_FLAG_LINUX_CGROUP 0x0800
#define PROCESS_FLAG_LINUX_OOM 0x1000
#define PROCESS_FLAG_LINUX_SMAPS 0x2000
typedef enum UnsupportedProcessFields {
FLAGS = 9,
@ -87,7 +88,10 @@ typedef enum LinuxProcessFields {
PERCENT_IO_DELAY = 117,
PERCENT_SWAP_DELAY = 118,
#endif
LAST_PROCESSFIELD = 119,
M_PSS = 119,
M_SWAP = 120,
M_PSSWP = 121,
LAST_PROCESSFIELD = 122,
} LinuxProcessField;
#include "IOPriority.h"
@ -103,6 +107,9 @@ typedef struct LinuxProcess_ {
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;
@ -240,6 +247,9 @@ ProcessFieldData Process_fields[] = {
[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
[M_PSS] = { .name = "M_PSS", .title = " PSS ", .description = "proportional set size, same as M_RESIDENT but each page is divided by the number of processes sharing it.", .flags = PROCESS_FLAG_LINUX_SMAPS, },
[M_SWAP] = { .name = "M_SWAP", .title = " SWAP ", .description = "Size of the process's swapped pages", .flags = PROCESS_FLAG_LINUX_SMAPS, },
[M_PSSWP] = { .name = "M_PSSWP", .title = " PSSWP ", .description = "shows proportional swap share of this mapping, Unlike \"Swap\", this does not take into account swapped out page of underlying shmem objects.", .flags = PROCESS_FLAG_LINUX_SMAPS, },
[LAST_PROCESSFIELD] = { .name = "*** report bug! ***", .title = NULL, .description = NULL, .flags = 0, },
};
@ -345,6 +355,9 @@ void LinuxProcess_writeField(Process* this, RichString* str, ProcessField field)
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 M_PSS: Process_humanNumber(str, lp->m_pss, coloring); return;
case M_SWAP: Process_humanNumber(str, lp->m_swap, coloring); return;
case M_PSSWP: Process_humanNumber(str, lp->m_psswp, 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;
@ -436,6 +449,12 @@ long LinuxProcess_compare(const void* v1, const void* v2) {
return (p2->m_trs - p1->m_trs);
case M_SHARE:
return (p2->m_share - p1->m_share);
case M_PSS:
return (p2->m_pss - p1->m_pss);
case M_SWAP:
return (p2->m_swap - p1->m_swap);
case M_PSSWP:
return (p2->m_psswp - p1->m_psswp);
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;

9
linux/LinuxProcess.h
View File

@ -15,6 +15,7 @@ in the source distribution for its full text.
#define PROCESS_FLAG_LINUX_VSERVER 0x0400
#define PROCESS_FLAG_LINUX_CGROUP 0x0800
#define PROCESS_FLAG_LINUX_OOM 0x1000
#define PROCESS_FLAG_LINUX_SMAPS 0x2000
typedef enum UnsupportedProcessFields {
FLAGS = 9,
@ -78,7 +79,10 @@ typedef enum LinuxProcessFields {
PERCENT_IO_DELAY = 117,
PERCENT_SWAP_DELAY = 118,
#endif
LAST_PROCESSFIELD = 119,
M_PSS = 119,
M_SWAP = 120,
M_PSSWP = 121,
LAST_PROCESSFIELD = 122,
} LinuxProcessField;
#include "IOPriority.h"
@ -94,6 +98,9 @@ typedef struct LinuxProcess_ {
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;

83
linux/LinuxProcessList.c
View File

@ -89,6 +89,7 @@ typedef struct LinuxProcessList_ {
CPUData* cpus;
TtyDriver* ttyDrivers;
bool haveSmapsRollup;
#ifdef HAVE_DELAYACCT
struct nl_sock *netlink_socket;
@ -240,8 +241,17 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
LinuxProcessList_initNetlinkSocket(this);
#endif
// Check for /proc/*/smaps_rollup availability (improves smaps parsing speed, Linux 4.14+)
FILE* file = fopen(PROCDIR "/self/smaps_rollup", "r");
if(file != NULL) {
this->haveSmapsRollup = true;
fclose(file);
} else {
this->haveSmapsRollup = false;
}
// Update CPU count:
FILE* file = fopen(PROCSTATFILE, "r");
file = fopen(PROCSTATFILE, "r");
if (file == NULL) {
CRT_fatalError("Cannot open " PROCSTATFILE);
}
@ -486,6 +496,62 @@ static bool LinuxProcessList_readStatmFile(LinuxProcess* process, const char* di
return (errno == 0);
}
static bool LinuxProcessList_readSmapsFile(LinuxProcess* process, const char* dirname, const char* name, bool haveSmapsRollup) {
//http://elixir.free-electrons.com/linux/v4.10/source/fs/proc/task_mmu.c#L719
//kernel will return data in chunks of size PAGE_SIZE or less.
char buffer[PAGE_SIZE];// 4k
char *start,*end;
ssize_t nread=0;
int tmp=0;
if(haveSmapsRollup) {// only available in Linux 4.14+
snprintf(buffer, MAX_NAME, "%s/%s/smaps_rollup", dirname, name);
} else {
snprintf(buffer, MAX_NAME, "%s/%s/smaps", dirname, name);
}
int fd = open(buffer, O_RDONLY);
if (fd == -1)
return false;
process->m_pss = 0;
process->m_swap = 0;
process->m_psswp = 0;
while ( ( nread = read(fd,buffer, sizeof(buffer)) ) > 0 ){
start = (char *)&buffer;
end = start + nread;
do{//parse 4k block
if( (tmp = (end - start)) > 0 &&
(start = memmem(start,tmp,"\nPss:",5)) != NULL )
{
process->m_pss += strtol(start+5, &start, 10);
start += 3;//now we must be at the end of line "Pss: 0 kB"
}else
break; //read next 4k block
if( (tmp = (end - start)) > 0 &&
(start = memmem(start,tmp,"\nSwap:",6)) != NULL )
{
process->m_swap += strtol(start+6, &start, 10);
start += 3;
}else
break;
if( (tmp = (end - start)) > 0 &&
(start = memmem(start,tmp,"\nSwapPss:",9)) != NULL )
{
process->m_psswp += strtol(start+9, &start, 10);
start += 3;
}else
break;
}while(1);
}//while read
close(fd);
return true;
}
#ifdef HAVE_OPENVZ
static void LinuxProcessList_readOpenVZData(LinuxProcess* process, const char* dirname, const char* name) {
@ -815,6 +881,21 @@ static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, const char*
if (! LinuxProcessList_readStatmFile(lp, dirname, name))
goto errorReadingProcess;
if ((settings->flags & PROCESS_FLAG_LINUX_SMAPS) && !Process_isKernelThread(proc)){
if (!parent){
// Read smaps file of each process only every second pass to improve performance
static int smaps_flag = 0;
if ((pid & 1) == smaps_flag){
LinuxProcessList_readSmapsFile(lp, dirname, name, this->haveSmapsRollup);
}
if (pid == 1) {
smaps_flag = !smaps_flag;
}
} else {
lp->m_pss = ((LinuxProcess*)parent)->m_pss;
}
}
proc->show = ! ((hideKernelThreads && Process_isKernelThread(proc)) || (hideUserlandThreads && Process_isUserlandThread(proc)));
char command[MAX_NAME+1];

1
linux/LinuxProcessList.h
View File

@ -62,6 +62,7 @@ typedef struct LinuxProcessList_ {
CPUData* cpus;
TtyDriver* ttyDrivers;
bool haveSmapsRollup;
#ifdef HAVE_DELAYACCT
struct nl_sock *netlink_socket;