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Diffstat (limited to 'jittertest/plotJittervsFill.c')
| -rw-r--r-- | jittertest/plotJittervsFill.c | 312 |
1 files changed, 0 insertions, 312 deletions
diff --git a/jittertest/plotJittervsFill.c b/jittertest/plotJittervsFill.c deleted file mode 100644 index f8a5660..0000000 --- a/jittertest/plotJittervsFill.c +++ /dev/null @@ -1,312 +0,0 @@ -/* - *********************************************************************** - * - * Copyright: Daniel Measurement and Control, Inc. - * 9753 Pine Lake Drive - * Houston, TX 77055 - * - * Created by: Vipin Malik - * Released under GPL by permission of Daniel Industries. - * - * This software is licensed under the GPL version 2. Plese see the file - * COPYING for details on the license. - * - * NO WARRANTY: Absolutely no claims of warranty or fitness of purpose - * are made in this software. Please use at your own risk. - * - File: plotJittervsFill.c - By: Vipin Malik - - About: This program reads in a jitter log file as created - by the JitterTest.c program and extracts all the jitters - in the file that are greater than a threshold specified - as a parameter on the cmd line. It also extracts the - amount of disk space at (form the "df" out that should also - be present in the log file) after the jitter extracted. - - It writes the data to the stderr (where you may redirect it). - It is suitable for plotting, as the data is written as - COL1=UsedSpace COL2=Jitter - - $Id: plotJittervsFill.c,v 1.6 2005/11/07 11:15:21 gleixner Exp $ - $Log: plotJittervsFill.c,v $ - Revision 1.6 2005/11/07 11:15:21 gleixner - [MTD / JFFS2] Clean up trailing white spaces - - Revision 1.5 2001/08/10 19:23:11 vipin - Ready to be released under GPL! Added proper headers etc. - - Revision 1.4 2001/07/02 22:25:40 vipin - Fixed couple of minor cosmetic typos. - - Revision 1.3 2001/07/02 14:46:46 vipin - Added a debug option where it o/p's line numbers to debug funky values. - - Revision 1.2 2001/06/26 19:48:57 vipin - Now prints out jitter values found at end of log file, after which - no new "df" disk usage values were encountered. The last "df" disk usage - encountered is printed for these orphaned values. - - Revision 1.1 2001/06/25 19:13:55 vipin - Added new file- plotJittervsFill.c- that mines the data log file - outputed from the fillFlash.sh script file and JitterTest.c file - and produces output suitable to be plotted. - This output plot may be examined to see visually the relationship - of the Jitter vs disk usage of the fs under test. - - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <fcntl.h> - -static char Version_string[] = "$Id: plotJittervsFill.c,v 1.6 2005/11/07 11:15:21 gleixner Exp $"; -static char LogFile[250] = "InputLogFile.log"; - -static int JitterThreshold_ms = 1000; -static int Debug = 0; /* Debug level. Each "-d" on the cmd line increases the level */ - -#define TRUE 1 -#define FALSE 0 - -#define MIN_JITTER_THRESHOLD 1 /* ms minimum jitter threshold */ - -void PrintHelpInfo(void) -{ - printf("Usage: plotJittervsFill [options] -f [--file] <input log file name> -t [--jitter_threshold] <jitter threshold in ms>\n"); - printf("[options]:\n-v [--version] Print version and exit\n"); - printf("-d Debug. Prints input file line number for each data point picked up.\n"); - printf("-h [--help] [-?] Print this help screen and exit.\n"); -} - - - -/*********************************************************************** - * HandleCmdLineArgs - * This function handles the command line arguments. - * output: stack size - ***********************************************************************/ -void HandleCmdLineArgs( - int argc, /* number of command-line arguments */ - char *argv[]) /* ptrs to command-line arguments */ -{ - int argNum; /* argument number */ - - if (argc > (int) 1) { - - for (argNum = (int) 1; argNum < argc; argNum++) { - - /* The command line contains an argument. */ - - if ((strcmp(argv[argNum],"--version") == 0) || - (strcmp(argv[argNum],"-v") == 0)) { - /* Print version information and exit. */ - printf("%s\n", Version_string); - exit(0); - } - - else if ((strcmp(argv[argNum],"--help") == 0) || - (strcmp(argv[argNum],"-h") == 0) || - (strcmp(argv[argNum],"-?") == 0)) { - /* Print help information and exit. */ - PrintHelpInfo(); - exit(0); - } - - else if ((strcmp(argv[argNum],"--file") == 0) || - (strcmp(argv[argNum],"-f") == 0)) { - /* Set the name of the output file. */ - ++argNum; - if (argNum < argc) { - strncpy(LogFile, argv[argNum], sizeof(LogFile)); - } - else { - printf("*** Input file name not specified. ***\n"); - exit(0); - } - } - - else if ((strcmp(argv[argNum],"--jitter_threshold") == 0) || - (strcmp(argv[argNum],"-t") == 0)) { - /* Set the file to read*/ - ++argNum; - - JitterThreshold_ms = atoi(argv[argNum]); - - if(JitterThreshold_ms < MIN_JITTER_THRESHOLD) - { - printf("A jitter threshold less than %i ms is not allowed. Bye.\n", - MIN_JITTER_THRESHOLD); - exit(0); - } - } - - else if ((strcmp(argv[argNum],"-d") == 0)) - { - /* Increment debug level */ - - Debug++; - } - - else { - /* Unknown argument. Print help information and exit. */ - printf("Invalid option %s\n", argv[argNum]); - printf("Try 'plotJittervsFill --help' for more information.\n"); - exit(0); - } - } - } - - return; -} - - - - - -int main( - int argc, - char *argv[]) -{ - - char lineBuf[1024]; /* how long a single line be? */ - int converted; - int lineNo = 0; - int cnt; - - FILE *fp; - - int junkInt1, junkInt2, junkInt3; - float junkFloat1; - float jitter_ms; - -#define MAX_SAVE_BUFFER 1000 /* How many values will be picked up while searching for - a % disk full line (i.e. before they can be printed out) - */ - int saveJitter[MAX_SAVE_BUFFER]; /* lets us record multiple jitter values that exceed - our threshold till we find a "df" field- which is when - we can o/p all these values. - */ - int dataLineNo[MAX_SAVE_BUFFER]; /* The saved line #'s for the above. Printed if debug specified. */ - - int saveJitterCnt = 0; - int lookFor_df = FALSE; - int dfPercent = -1; /* will be >= 0 if at least one found. The init value is a flag. */ - - char junkStr1[500], junkStr2[500]; - - HandleCmdLineArgs(argc, argv); - - if((fp = fopen(LogFile, "r")) == NULL) - { - printf("Unable to open input log file %s for read.\b", LogFile); - perror("Error:"); - exit(1); - } - - - - while(fgets(lineBuf, sizeof(lineBuf), fp) != NULL) - { - lineNo++; - - - /* Are we looking for a "df" o/p line? (to see how full - the flash is?)*/ - - /* is there a "%" in this line? */ - if((strstr(lineBuf, "%") != NULL) && (lookFor_df)) - { - converted = sscanf(lineBuf, "%s %i %i %i %i\n", - junkStr1, &junkInt1, &junkInt2, &junkInt3, &dfPercent); - if(converted < 5) - { - printf("Line %i contains \"%%\", but expected fileds not found. Skipping.\n", lineNo); - }else - { - /* Now print out the saved jitter values (in col2) with this dfPercent value as the col1. */ - for(cnt = 0; cnt < saveJitterCnt; cnt++) - { - if(Debug) - { - fprintf(stderr, "%i\t%i\t%i\n", (int)dataLineNo[cnt], - dfPercent, (int)saveJitter[cnt]); - }else - { - fprintf(stderr, "%i\t%i\n", dfPercent, (int)saveJitter[cnt]); - } - - - } - - saveJitterCnt = 0; /* all flushed. Reset for next saves. */ - lookFor_df = FALSE; - } - - } - - - /* is there a "ms" in this line?*/ - if(strstr(lineBuf, "ms") == NULL) - { - continue; - } - - /* grab the ms jitter value */ - converted = sscanf(lineBuf, "%f %s %f %s\n", &junkFloat1, junkStr1, &jitter_ms, junkStr2); - if(converted < 4) - { - printf("Line %i contains \"ms\", but expected fileds not found. Converted %i, Skipping.", - lineNo, converted); - printf("1=%i, 2=%s.\n", junkInt1, junkStr1); - continue; /* not our jitter line*/ - } - - /* Is the jitter value > threshold value? */ - if(abs(jitter_ms) > JitterThreshold_ms) - { - /* Found a jitter line that matches our crietrion. - Now set flag to be on the look out for the next - "df" output so that we can see how full the flash is. - */ - - if(saveJitterCnt < MAX_SAVE_BUFFER) - { - saveJitter[saveJitterCnt] = (int)abs(jitter_ms); /* why keep the (ms) jitter in float */ - dataLineNo[saveJitterCnt] = lineNo; - saveJitterCnt++; - lookFor_df = TRUE; - } - else - { - printf("Oops! I've run out of buffer space before I found a %% use line. Dropping itter value. Increase MAX_SAVE_BUFFER and recompile.\n"); - } - - - } - - } - - - /* Now print out any saved jitter values that were not printed out because we did not find - and "df" after these were picked up. Only print if a "df" disk usage was ever found. - */ - if(lookFor_df && (dfPercent >= 0)) - { - /* Now print out the saved jitter values (in col2) with this dfPercent value as the col1. */ - for(cnt = 0; cnt < saveJitterCnt; cnt++) - { - fprintf(stderr, "%i\t%i\n", dfPercent, (int)saveJitter[cnt]); - } - } - - return 0; - - -}/* end main() */ - - - - |