diff -upr sysstat-10.1.5.orig/common.h sysstat-10.1.5/common.h

--- sysstat-10.1.5.orig/common.h	2013-03-23 17:31:46.000000000 +0100

+++ sysstat-10.1.5/common.h	2016-04-29 12:47:09.285214132 +0200

@@ -106,9 +106,12 @@

  *

  * NB: Define SP_VALUE() to normalize to %;

  * HZ is 1024 on IA64 and % should be normalized to 100.

+ * SP_VALUE_100() will not output value bigger than 100; this is needed for some

+ *     corner cases, should be used with care.

  */

 #define S_VALUE(m,n,p)	(((double) ((n) - (m))) / (p) * HZ)

 #define SP_VALUE(m,n,p)	(((double) ((n) - (m))) / (p) * 100)

+#define SP_VALUE_100(m,n,p)	MINIMUM((((double) ((n) - (m))) / (p) * 100),100)

 /*

  * Under very special circumstances, STDOUT may become unavailable.

diff -upr sysstat-10.1.5.orig/pidstat.c sysstat-10.1.5/pidstat.c

--- sysstat-10.1.5.orig/pidstat.c	2013-03-23 17:31:46.000000000 +0100

+++ sysstat-10.1.5/pidstat.c	2016-04-29 13:04:02.672402150 +0200

@@ -152,15 +152,35 @@ void salloc_pid_array(unsigned int len)

  */

 void salloc_pid(unsigned int len)

 {

-	int i;

+	short i;

+

+	for (i = 0; i < 3; i++) {

+		if ((st_pid_list[i] = (struct pid_stats *) calloc(len, PID_STATS_SIZE)) == NULL) {

+			perror("calloc");

+			exit(4);

+		}

+	}

+}

+

+/*

+ ***************************************************************************

+ * Reallocate structures for PIDs to read.

+ ***************************************************************************

+ */

+void realloc_pid(void)

+{

+	short i;

+	unsigned int new_size = 2 * pid_nr;

 	for (i = 0; i < 3; i++) {

-		if ((st_pid_list[i] = (struct pid_stats *) malloc(PID_STATS_SIZE * len)) == NULL) {

-			perror("malloc");

+		if ((st_pid_list[i] = (struct pid_stats *) realloc(st_pid_list[i], PID_STATS_SIZE * new_size)) == NULL) {

+			perror("realloc");

 			exit(4);

 		}

-		memset(st_pid_list[i], 0, PID_STATS_SIZE * len);

+		memset(st_pid_list[i] + pid_nr, 0, PID_STATS_SIZE * (new_size - pid_nr));

 	}

+

+	pid_nr = new_size;

 }

 /*

@@ -774,23 +794,22 @@ void read_task_stats(int curr, unsigned

 	if ((dir = opendir(filename)) == NULL)

 		return;

-	while (*index < pid_nr) {

+	while ((drp = readdir(dir)) != NULL) {

+		if (!isdigit(drp->d_name[0])) {

+			continue;

+		}

-		while ((drp = readdir(dir)) != NULL) {

-			if (isdigit(drp->d_name[0]))

-				break;

+		pst = st_pid_list[curr] + (*index)++;

+		if (read_pid_stats(atoi(drp->d_name), pst, &thr_nr, pid)) {

+			/* Thread no longer exists */

+			pst->pid = 0;

 		}

-		if (drp) {

-			pst = st_pid_list[curr] + (*index)++;

-			if (read_pid_stats(atoi(drp->d_name), pst, &thr_nr, pid)) {

-				/* Thread no longer exists */

-				pst->pid = 0;

-			}

+		if (*index >= pid_nr) {

+			realloc_pid();

 		}

-		else

-			break;

 	}

+

 	closedir(dir);

 }

@@ -830,36 +849,34 @@ void read_stats(int curr)

 			exit(4);

 		}

-		while (p < pid_nr) {

+		/* Get directory entries */

+                while ((drp = readdir(dir)) != NULL) {

+                        if (!isdigit(drp->d_name[0])) {

+                                continue;

+                        }

+

+                        pst = st_pid_list[curr] + p++;

+                        pid = atoi(drp->d_name);

+

+                        if (read_pid_stats(pid, pst, &thr_nr, 0)) {

+                            /* Process has terminated */

+                            pst->pid = 0;

+                        } else if (DISPLAY_TID(pidflag)) {

+                            /* Read stats for threads in task subdirectory */

+                            read_task_stats(curr, pid, &p);

-			/* Get directory entries */

-			while ((drp = readdir(dir)) != NULL) {

-				if (isdigit(drp->d_name[0]))

-					break;

-			}

-			if (drp) {

-				pst = st_pid_list[curr] + p++;

-				pid = atoi(drp->d_name);

-	

-				if (read_pid_stats(pid, pst, &thr_nr, 0)) {

-					/* Process has terminated */

-					pst->pid = 0;

-				}

-	

-				else if (DISPLAY_TID(pidflag)) {

-					/* Read stats for threads in task subdirectory */

-					read_task_stats(curr, pid, &p);

-				}

-			}

-			else {

-				for (q = p; q < pid_nr; q++) {

-					pst = st_pid_list[curr] + q;

-					pst->pid = 0;

-				}

-				break;

 			}

+

+			if (p >= pid_nr) {

+                            realloc_pid();

+                        }

 		}

+                for (q = p; q < pid_nr; q++) {

+                    pst = st_pid_list[curr] + q;

+                    pst->pid = 0;

+                }

+

 		/* Close /proc directory */

 		closedir(dir);

 	}

@@ -1174,15 +1191,15 @@ int write_pid_task_all_stats(int prev, i

 			printf(" %7.2f %7.2f %7.2f %7.2f",

 			       (pstc->utime - pstc->gtime) < (pstp->utime - pstp->gtime) ?

 			       0.0 :

-			       SP_VALUE(pstp->utime - pstp->gtime,

+			       SP_VALUE_100(pstp->utime - pstp->gtime,

 					pstc->utime - pstc->gtime, itv),

-			       SP_VALUE(pstp->stime,  pstc->stime, itv),

-			       SP_VALUE(pstp->gtime,  pstc->gtime, itv),

+			       SP_VALUE_100(pstp->stime,  pstc->stime, itv),

+			       SP_VALUE_100(pstp->gtime,  pstc->gtime, itv),

 			       /* User time already includes guest time */

 			       IRIX_MODE_OFF(pidflag) ?

-			       SP_VALUE(pstp->utime + pstp->stime,

+			       SP_VALUE_100(pstp->utime + pstp->stime,

 					pstc->utime + pstc->stime, g_itv) :

-			       SP_VALUE(pstp->utime + pstp->stime,

+			       SP_VALUE_100(pstp->utime + pstp->stime,

 					pstc->utime + pstc->stime, itv));

 			printf("   %3d", pstc->processor);

@@ -1351,15 +1368,15 @@ int write_pid_task_cpu_stats(int prev, i

 		printf(" %7.2f %7.2f %7.2f %7.2f",

 		       (pstc->utime - pstc->gtime) < (pstp->utime - pstp->gtime) ?

 		       0.0 :

-		       SP_VALUE(pstp->utime - pstp->gtime,

+		       SP_VALUE_100(pstp->utime - pstp->gtime,

 				pstc->utime - pstc->gtime, itv),

-		       SP_VALUE(pstp->stime,  pstc->stime, itv),

-		       SP_VALUE(pstp->gtime,  pstc->gtime, itv),

+		       SP_VALUE_100(pstp->stime,  pstc->stime, itv),

+		       SP_VALUE_100(pstp->gtime,  pstc->gtime, itv),

 		       /* User time already includes guest time */

 		       IRIX_MODE_OFF(pidflag) ?

-		       SP_VALUE(pstp->utime + pstp->stime,

+		       SP_VALUE_100(pstp->utime + pstp->stime,

 				pstc->utime + pstc->stime, g_itv) :

-		       SP_VALUE(pstp->utime + pstp->stime,

+		       SP_VALUE_100(pstp->utime + pstp->stime,

 				pstc->utime + pstc->stime, itv));

 		if (!disp_avg) {

diff -upr sysstat-10.1.5.orig/pidstat.h sysstat-10.1.5/pidstat.h

--- sysstat-10.1.5.orig/pidstat.h	2013-03-23 17:31:46.000000000 +0100

+++ sysstat-10.1.5/pidstat.h	2016-04-28 18:24:37.700124018 +0200

@@ -13,7 +13,7 @@

 #define K_P_CHILD	"CHILD"

 #define K_P_ALL		"ALL"

-#define NR_PID_PREALLOC	10

+#define NR_PID_PREALLOC	100

 #define MAX_COMM_LEN	128

 #define MAX_CMDLINE_LEN	128