ttyplot

commit 95d2271a7b1c9d587352b8f983483e1a5c3588a4
parent a04701dbd148472734cf7e29bd885911a249b756
Author: Antoni Sawicki <as@tenoware.com>
Date:   Fri, 12 Oct 2018 01:22:06 -0700

fixes

Diffstat:
M
README.md
 | 
9
+++++++--
M
ttyplot.c
 | 
10
+++++-----

2 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/README.md b/README.md
@@ -51,6 +51,11 @@ snmpdelta -v 2c -c public -Cp 10 10.23.73.254 1.3.6.1.2.1.2.2.1.10.9  1.3.6.1.2.
 { while true; do curl -s  http://10.4.7.180:9100/metrics | gawk '/^node_load1 / { print $2; fflush(); }'; sleep 1; done } | ttyplot
 ```
 
+### Disk Throughput from iostat 
+```
+iostat -xmy 1 | gawk '/^nvme0n1/ { print $4,$5; fflush(); }' | ttyplot -2 -t "nvme0n1 throughput" -u MB/s
+```
+
 ### CPU temperature
 ```
 { while true; do gawk '{ printf("%.1f\n", $1/1000); fflush(); }' /sys/class/thermal/thermal_zone0/temp; sleep 1; done } | ttyplot -t "cpu temp" -u C
@@ -75,9 +80,9 @@ rate calculator for counters
 { while true; do snmpget  -v 2c -c public  10.23.73.254  1.3.6.1.2.1.2.2.1.10.9 1.3.6.1.2.1.2.2.1.16.9 | gawk '{ print $NF/1000/1000; fflush(); }'; sleep 10; done } | ttyplot -2 -r -u "MB/s"
 ```
 
-### prometheus node exporter disk write MB/s for sda device
+### prometheus node exporter disk throughput for sda device using two lines 
 ```
-{ while true; do curl -s http://10.11.0.173:9100/metrics | gawk '/^node_disk_written_bytes_total{device="sda"}/ { printf("%f\n", $2/1024/1024); fflush(); }'; sleep 1; done } | ttyplot -r -u MB/s -t "10.11.0.173 sda writes"
+{ while true; do curl -s http://10.11.0.173:9100/metrics | gawk '/^node_disk_.+_bytes_total{device="sda"}/ { printf("%f\n", $2/1024/1024); fflush(); }'; sleep 1; done } | ttyplot -r -2 -u MB/s -t "10.11.0.173 sda writes"
 ```
 
 
diff --git a/ttyplot.c b/ttyplot.c
@@ -22,7 +22,7 @@ int usage() {
     exit(0);
 }
 
-int getminmax(int pw, int n, double *values, double *min, double *max, double *avg) {
+void getminmax(int pw, int n, double *values, double *min, double *max, double *avg) {
     double tot=0;
     int i=0;
 
@@ -44,7 +44,7 @@ int getminmax(int pw, int n, double *values, double *min, double *max, double *a
     *avg=tot/pw;
 }
 
-int draw_axes(int h, int w, int ph, int pw, double max, char *unit) {
+void draw_axes(int h, int w, int ph, int pw, double max, char *unit) {
     mvhline(h-3, 2, ACS_HLINE, pw);
     mvaddch(h-3, 2+pw, ACS_RARROW);
 
@@ -59,7 +59,7 @@ int draw_axes(int h, int w, int ph, int pw, double max, char *unit) {
     mvprintw((ph*3/4)+1, 4, "%.1f %s", max/4, unit);
 }
 
-int draw_line(int ph, int l1, int l2, int x, chtype plotchar) {
+void draw_line(int ph, int l1, int l2, int x, chtype plotchar) {
     if(l1 > l2) {
         mvvline(ph+1-l1, x, plotchar, l1-l2 );
         mvvline(ph+1-l2, x, plotchar|A_REVERSE, l2 );
@@ -73,7 +73,7 @@ int draw_line(int ph, int l1, int l2, int x, chtype plotchar) {
 }
 
 
-int draw_values(int h, int w, int ph, int pw, double *v1, double *v2, double max, int n, chtype plotchar) {
+void draw_values(int h, int w, int ph, int pw, double *v1, double *v2, double max, int n, chtype plotchar) {
     int i;
     int x=3;
     int l1=0, l2=0;
@@ -92,7 +92,7 @@ int draw_values(int h, int w, int ph, int pw, double *v1, double *v2, double max
 
 }
 
-int resize(int sig) {
+void resize(int sig) {
     endwin();
     refresh();
 }