zeldon/htop
1
0
Fork 0
mirror of https://github.com/xzeldon/htop.git synced 2025-07-12 12:14:36 +03:00
Code Issues Packages Projects Releases Wiki Activity

Add Linux process column for context switches

Browse Source 
Displays the incremental sum of voluntary_ctxt_switches and nonvoluntary_ctxt_switches.
This commit is contained in:
Christian Göttsche
2020-09-11 15:02:00 +02:00
committed by cgzones
parent ffc65b3827
commit 98ee833932
4 changed files with 45 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
linux/LinuxProcessList.c
View File

@ -588,6 +588,32 @@ static void LinuxProcessList_readOomData(LinuxProcess* process, const char* dirn
fclose(file);
}
static void LinuxProcessList_readCtxtData(LinuxProcess* process, const char* dirname, const char* name) {
char filename[MAX_NAME+1];
xSnprintf(filename, MAX_NAME, "%s/%s/status", dirname, name);
FILE* file = fopen(filename, "r");
if (!file)
return;
char buffer[PROC_LINE_LENGTH + 1];
unsigned long ctxt = 0;
while (fgets(buffer, PROC_LINE_LENGTH, file)) {
if (String_startsWith(buffer, "voluntary_ctxt_switches:")) {
unsigned long vctxt;
int ok = sscanf(buffer, "voluntary_ctxt_switches:\t%lu", &vctxt);
if (ok >= 1)
ctxt += vctxt;
} else if (String_startsWith(buffer, "nonvoluntary_ctxt_switches:")) {
unsigned long nvctxt;
int ok = sscanf(buffer, "nonvoluntary_ctxt_switches:\t%lu", &nvctxt);
if (ok >= 1)
ctxt += nvctxt;
}
}
fclose(file);
process->ctxt_diff = (ctxt > process->ctxt_total) ? (ctxt - process->ctxt_total) : 0;
process->ctxt_total = ctxt;
}
#ifdef HAVE_DELAYACCT
static int handleNetlinkMsg(struct nl_msg *nlmsg, void *linuxProcess) {
@ -885,6 +911,9 @@ static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, const char*
if (settings->flags & PROCESS_FLAG_LINUX_OOM)
LinuxProcessList_readOomData(lp, dirname, name);
if (settings->flags & PROCESS_FLAG_LINUX_CTXT)
LinuxProcessList_readCtxtData(lp, dirname, name);
if (proc->state == 'Z' && (proc->basenameOffset == 0)) {
proc->basenameOffset = -1;
setCommand(proc, command, commLen);