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Dynamically scale the ST_UID size to support 32-bit UIDs

Browse Source 
While most Unix-like systems use 16-bit user IDs,
Linux supports 32-bit UIDs since version 2.6.
UIDs above 65535 are used for UID namespacing of containers,
where a container has its own set of 16-bit user IDs.
Processes in such containers will have (much) larger UIDs than 65535.

Because the current format strings for `ST_UID` and `USER`
are `%5d` and `%9d` respectively, processes with such UIDs
lead to misaligned columns.

Dynamically scale the `ST_UID` column and increase the size of `USER`
to 10 characters (length of UINT32_MAX) to ensure that the user ID always fits.

Additionally: clean up how the titlebuffer size calculation and ensure
the PID column has a minimum size of 5.
main
Silke Hofstra 5 years ago committed by BenBE
parent 4374a267be
commit 696f79fe50
13 changed files with 71 additions and 29 deletions
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  1. 24
      Process.c
  2. 7
      Process.h
  3. 24
      ProcessList.c
  4. 9
      ScreenManager.c
  5. 4
      darwin/DarwinProcess.c
  6. 4
      dragonflybsd/DragonFlyBSDProcess.c
  7. 4
      freebsd/FreeBSDProcess.c
  8. 4
      linux/LinuxProcess.c
  9. 4
      netbsd/NetBSDProcess.c
  10. 4
      openbsd/OpenBSDProcess.c
  11. 4
      pcp/PCPProcess.c
  12. 4
      solaris/SolarisProcess.c
  13. 4
      unsupported/UnsupportedProcess.c

24
Process.c
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@ -41,17 +41,33 @@ static const char* const kthreadID = "KTHREAD";
static uid_t Process_getuid = (uid_t)-1;
int Process_pidDigits = 7;
int Process_pidDigits = PROCESS_MIN_PID_DIGITS;
int Process_uidDigits = PROCESS_MIN_UID_DIGITS;
void Process_setupColumnWidths() {
int maxPid = Platform_getMaxPid();
if (maxPid == -1)
return;
if (maxPid < (int)pow(10, PROCESS_MIN_PID_DIGITS)) {
Process_pidDigits = PROCESS_MIN_PID_DIGITS;
return;
}
Process_pidDigits = ceil(log10(maxPid));
assert(Process_pidDigits <= PROCESS_MAX_PID_DIGITS);
}
void Process_setUidColumnWidth(uid_t maxUid) {
if (maxUid < (uid_t)pow(10, PROCESS_MIN_UID_DIGITS)) {
Process_uidDigits = PROCESS_MIN_UID_DIGITS;
return;
}
Process_uidDigits = ceil(log10(maxUid));
assert(Process_uidDigits <= PROCESS_MAX_UID_DIGITS);
}
void Process_printBytes(RichString* str, unsigned long long number, bool coloring) {
char buffer[16];
int len;
@ -885,7 +901,7 @@ void Process_writeField(const Process* this, RichString* str, ProcessField field
break;
}
break;
case ST_UID: xSnprintf(buffer, n, "%5d ", this->st_uid); break;
case ST_UID: xSnprintf(buffer, n, "%*d ", Process_uidDigits, this->st_uid); break;
case TIME: Process_printTime(str, this->time, coloring); return;
case TGID:
if (this->tgid == this->pid)
@ -908,11 +924,11 @@ void Process_writeField(const Process* this, RichString* str, ProcessField field
attr = CRT_colors[PROCESS_SHADOW];
if (this->user) {
Process_printLeftAlignedField(str, attr, this->user, 9);
Process_printLeftAlignedField(str, attr, this->user, 10);
return;
}
xSnprintf(buffer, n, "%-9d ", this->st_uid);
xSnprintf(buffer, n, "%-10d ", this->st_uid);
break;
default:
if (DynamicColumn_writeField(this, str, field))

7
Process.h
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@ -278,8 +278,12 @@ void Process_writeField(const Process* this, RichString* str, ProcessField field
int Process_compare(const void* v1, const void* v2);
void Process_delete(Object* cast);
extern const ProcessFieldData Process_fields[LAST_PROCESSFIELD];
#define PROCESS_MIN_PID_DIGITS 5
#define PROCESS_MAX_PID_DIGITS 19
#define PROCESS_MIN_UID_DIGITS 5
#define PROCESS_MAX_UID_DIGITS 19
extern int Process_pidDigits;
extern int Process_uidDigits;
typedef Process* (*Process_New)(const struct Settings_*);
typedef void (*Process_WriteField)(const Process*, RichString*, ProcessField);
@ -337,6 +341,9 @@ static inline bool Process_isThread(const Process* this) {
void Process_setupColumnWidths(void);
/* Sets the size of the UID column based on the passed UID */
void Process_setUidColumnWidth(uid_t maxUid);
/* Takes number in bytes (base 1024). Prints 6 columns. */
void Process_printBytes(RichString* str, unsigned long long number, bool coloring);

24
ProcessList.c
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@ -105,13 +105,19 @@ static const char* alignedProcessFieldTitle(const ProcessList* this, ProcessFiel
if (!title)
return "- ";
if (!Process_fields[field].pidColumn)
return title;
if (Process_fields[field].pidColumn) {
static char titleBuffer[PROCESS_MAX_PID_DIGITS + sizeof(" ")];
xSnprintf(titleBuffer, sizeof(titleBuffer), "%*s ", Process_pidDigits, title);
return titleBuffer;
}
static char titleBuffer[PROCESS_MAX_PID_DIGITS + /* space */ 1 + /* null-terminator */ + 1];
xSnprintf(titleBuffer, sizeof(titleBuffer), "%*s ", Process_pidDigits, title);
if (field == ST_UID) {
static char titleBuffer[PROCESS_MAX_UID_DIGITS + sizeof(" ")];
xSnprintf(titleBuffer, sizeof(titleBuffer), "%*s ", Process_uidDigits, title);
return titleBuffer;
}
return titleBuffer;
return title;
}
void ProcessList_printHeader(const ProcessList* this, RichString* header) {
@ -626,10 +632,15 @@ void ProcessList_scan(ProcessList* this, bool pauseProcessUpdate) {
ProcessList_goThroughEntries(this, false);
uid_t maxUid = 0;
for (int i = Vector_size(this->processes) - 1; i >= 0; i--) {
Process* p = (Process*) Vector_get(this->processes, i);
Process_makeCommandStr(p);
// keep track of the highest UID for column scaling
if (p->st_uid > maxUid)
maxUid = p->st_uid;
if (p->tombStampMs > 0) {
// remove tombed process
if (this->monotonicMs >= p->tombStampMs) {
@ -647,6 +658,9 @@ void ProcessList_scan(ProcessList* this, bool pauseProcessUpdate) {
}
}
// Set UID column width based on max UID.
Process_setUidColumnWidth(maxUid);
if (this->settings->treeView) {
// Clear out the hashtable to avoid any left-over processes from previous build
//

9
ScreenManager.c
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@ -88,7 +88,7 @@ void ScreenManager_resize(ScreenManager* this) {
Panel_move(panel, lastX, y1_header);
}
static void checkRecalculation(ScreenManager* this, double* oldTime, int* sortTimeout, bool* redraw, bool* rescan, bool* timedOut) {
static void checkRecalculation(ScreenManager* this, double* oldTime, int* sortTimeout, bool* redraw, bool* rescan, bool* timedOut, bool *force_redraw) {
ProcessList* pl = this->header->pl;
Platform_gettime_realtime(&pl->realtime, &pl->realtimeMs);
@ -103,6 +103,7 @@ static void checkRecalculation(ScreenManager* this, double* oldTime, int* sortTi
if (*rescan) {
*oldTime = newTime;
int oldUidDigits = Process_uidDigits;
// scan processes first - some header values are calculated there
ProcessList_scan(pl, this->state->pauseProcessUpdate);
// always update header, especially to avoid gaps in graph meters
@ -111,6 +112,10 @@ static void checkRecalculation(ScreenManager* this, double* oldTime, int* sortTi
ProcessList_sort(pl);
*sortTimeout = 1;
}
// force redraw if the number of UID digits was changed
if (Process_uidDigits != oldUidDigits) {
*force_redraw = true;
}
*redraw = true;
}
if (*redraw) {
@ -153,7 +158,7 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
while (!quit) {
if (this->header) {
checkRecalculation(this, &oldTime, &sortTimeout, &redraw, &rescan, &timedOut);
checkRecalculation(this, &oldTime, &sortTimeout, &redraw, &rescan, &timedOut, &force_redraw);
}
if (redraw || force_redraw) {

4
darwin/DarwinProcess.c
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@ -37,11 +37,11 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
[PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, },
[M_VIRT] = { .name = "M_VIRT", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, .defaultSortDesc = true, },
[M_RESIDENT] = { .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, .defaultSortDesc = true, },
[ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .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, .defaultSortDesc = true, },
[PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, },
[PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
[USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .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, .defaultSortDesc = true, },
[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, .pidColumn = true, },

4
dragonflybsd/DragonFlyBSDProcess.c
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@ -37,11 +37,11 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
[PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, },
[M_VIRT] = { .name = "M_VIRT", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, .defaultSortDesc = true, },
[M_RESIDENT] = { .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, .defaultSortDesc = true, },
[ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .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, .defaultSortDesc = true, },
[PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, },
[PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
[USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .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, .defaultSortDesc = true, },
[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, .pidColumn = true, },

4
freebsd/FreeBSDProcess.c
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@ -36,11 +36,11 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
[PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, },
[M_VIRT] = { .name = "M_VIRT", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, .defaultSortDesc = true, },
[M_RESIDENT] = { .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, .defaultSortDesc = true, },
[ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .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, .defaultSortDesc = true, },
[PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, },
[PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
[USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .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, .defaultSortDesc = true, },
[NLWP] = { .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, .defaultSortDesc = true, },
[TGID] = { .name = "TGID", .title = "TGID", .description = "Thread group ID (i.e. process ID)", .flags = 0, .pidColumn = true, },

4
linux/LinuxProcess.c
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@ -56,11 +56,11 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
[M_TRS] = { .name = "M_TRS", .title = " CODE ", .description = "Size of the text segment of the process", .flags = 0, .defaultSortDesc = true, },
[M_DRS] = { .name = "M_DRS", .title = " DATA ", .description = "Size of the data segment plus stack usage of the process", .flags = 0, .defaultSortDesc = true, },
[M_LRS] = { .name = "M_LRS", .title = " LIB ", .description = "The library size of the process (calculated from memory maps)", .flags = PROCESS_FLAG_LINUX_LRS_FIX, .defaultSortDesc = true, },
[ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .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, .defaultSortDesc = true, },
[PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, },
[PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
[USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .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, .defaultSortDesc = true, },
[NLWP] = { .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, .defaultSortDesc = true, },
[TGID] = { .name = "TGID", .title = "TGID", .description = "Thread group ID (i.e. process ID)", .flags = 0, .pidColumn = true, },

4
netbsd/NetBSDProcess.c
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@ -138,7 +138,7 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
},
[ST_UID] = {
.name = "ST_UID",
.title = " UID ",
.title = "UID",
.description = "User ID of the process owner",
.flags = 0,
},
@ -165,7 +165,7 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
},
[USER] = {
.name = "USER",
.title = "USER ",
.title = "USER ",
.description = "Username of the process owner (or user ID if name cannot be determined)",
.flags = 0,
},

4
openbsd/OpenBSDProcess.c
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@ -136,7 +136,7 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
},
[ST_UID] = {
.name = "ST_UID",
.title = " UID ",
.title = "UID",
.description = "User ID of the process owner",
.flags = 0,
},
@ -163,7 +163,7 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
},
[USER] = {
.name = "USER",
.title = "USER ",
.title = "USER ",
.description = "Username of the process owner (or user ID if name cannot be determined)",
.flags = 0,
},

4
pcp/PCPProcess.c
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@ -53,11 +53,11 @@ const ProcessFieldData Process_fields[] = {
[M_DRS] = { .name = "M_DRS", .title = " DATA ", .description = "Size of the data segment plus stack usage of the process", .flags = 0, .defaultSortDesc = true, },
[M_LRS] = { .name = "M_LRS", .title = " LIB ", .description = "The library size of the process (unused since Linux 2.6; always 0)", .flags = 0, .defaultSortDesc = true, },
[M_DT] = { .name = "M_DT", .title = " DIRTY ", .description = "Size of the dirty pages of the process (unused since Linux 2.6; always 0)", .flags = 0, .defaultSortDesc = true, },
[ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .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, .defaultSortDesc = true, },
[PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, },
[PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
[USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .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, .defaultSortDesc = true, },
[NLWP] = { .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, .defaultSortDesc = true, },
[TGID] = { .name = "TGID", .title = "TGID", .description = "Thread group ID (i.e. process ID)", .flags = 0, },

4
solaris/SolarisProcess.c
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@ -39,11 +39,11 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
[PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, },
[M_VIRT] = { .name = "M_VIRT", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, .defaultSortDesc = true, },
[M_RESIDENT] = { .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, .defaultSortDesc = true, },
[ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .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, .defaultSortDesc = true, },
[PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, },
[PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
[USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .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, .defaultSortDesc = true, },
[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, .pidColumn = true, },

4
unsupported/UnsupportedProcess.c
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@ -34,11 +34,11 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
[PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, },
[M_VIRT] = { .name = "M_VIRT", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, .defaultSortDesc = true, },
[M_RESIDENT] = { .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, .defaultSortDesc = true, },
[ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .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, .defaultSortDesc = true, },
[PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, },
[PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
[USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .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, .defaultSortDesc = true, },
[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, .pidColumn = true, },

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