Subversion Repositories shark

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

#include <unistd.h>

#include <string.h>

#define MAXCONTEXT 100

#define MAXJOB 100000

#define INT_CTX 1

#define INT_PID 9999

#define PID_NO_DEF -1

#define BACKGROUND 0

#define PERIODICAL 1

#define INTERRUPT  2

#define DRAW_NUM 1000

struct ctx_exec {

        int ctx;

        unsigned long long dtsc;

        unsigned long long start;

};

struct ctx_to_pid {

        int ctx;

        int pid;

};

struct endcycle {

        int ctx;

        unsigned long long tsc;

};

void Error(int num) {

        printf("Finite-State machine error: %d\n",num);

        exit(2);

}

int context_total = 0,endcycle_total = 0,job_total = 0,exec_total = 0;

struct ctx_exec *exec_list;

struct ctx_to_pid *context_list;

struct endcycle *endcycle_list;

struct ctx_exec *job_list;

unsigned int clk_per_msec = 0;

unsigned long long log_start_tsc = 0;

unsigned long long log_end_tsc = 0;

unsigned long long total_dtsc = 0;

/* Data for gnuplot external call */

int draw_data[DRAW_NUM+1];

int gnuplot_clear() {

   int i;

   for (i=0;i<DRAW_NUM;i++)

     draw_data[i] = 0;

   return 0;

}

int gnuplot_draw(char *title,unsigned long long max_limit,int type) {

   FILE *gnuplot_data, *gnuplot_command;

   char temp_name[30];

   int i,pid,*current_mem;

   current_mem = malloc(sizeof(int)*(DRAW_NUM+1));

   memcpy(current_mem,draw_data,sizeof(int)*(DRAW_NUM+1));

   pid = fork();

   if (pid == 0) {

     srand(getpid());

     sprintf(temp_name,"/tmp/pwcet%d",rand()%10000);

     gnuplot_data = fopen(temp_name,"w");

     gnuplot_command = popen("gnuplot -persist","w");

     for (i=0;i<DRAW_NUM;i++)

       fprintf(gnuplot_data,"%f\t%f\n",(double)i * (double)max_limit / (double)DRAW_NUM,(float)(current_mem[i]));

     fflush(gnuplot_data);

     fclose(gnuplot_data);

     fprintf(gnuplot_command,"set xlabel \"Time [us]\"\n");

     if (type == 0) {

        fprintf(gnuplot_command,"set ylabel \"Frequency [#]\"\n");

        fprintf(gnuplot_command,"plot \"%s\" using 1:2 title \"%s\" with lines\n",temp_name,title);

        fflush(gnuplot_command);

     } else {

       fprintf(gnuplot_command,"set ylabel \"Time [us]\"\n");

       fprintf(gnuplot_command,"plot \"%s\" using 1:2 title \"%s\" with lines\n",temp_name,title);

       fflush(gnuplot_command);

     }

     pclose(gnuplot_command);

     exit(0);

   }

   return 0;

}

int stats_from_execs(int ctx_num, unsigned long long *tot_tsc,

                                unsigned long long *min_tsc,

                                unsigned long long *mean_tsc,

                                unsigned long long *max_tsc,

                                unsigned long long *first_tsc,

                                int *number) {

   unsigned long long temp_tsc;

   int k,i;

   temp_tsc = 0;

   *max_tsc = 0;

   *mean_tsc = 0;

   *min_tsc = 0xFFFFFFFF;

   *first_tsc = 0;

   k = 0;

   for (i=0;i<exec_total;i++)

     if (exec_list[i].ctx == context_list[ctx_num].ctx) {

       if (*first_tsc == 0) *first_tsc = exec_list[i].start - log_start_tsc;

       if (exec_list[i].dtsc > *max_tsc) *max_tsc = exec_list[i].dtsc;

       if (exec_list[i].dtsc < *min_tsc) *min_tsc = exec_list[i].dtsc;

       temp_tsc += exec_list[i].dtsc;

       k++;

     }

   *number = k;

   *tot_tsc = temp_tsc;

   *mean_tsc = temp_tsc / k;

   return 0;

}

int stats_from_jobs(int ctx_num, unsigned long long *tot_tsc,

                                unsigned long long *min_tsc,

                                unsigned long long *mean_tsc,

                                unsigned long long *max_tsc,

                                unsigned long long *first_tsc,

                                int *number) {

   unsigned long long temp_tsc;

   int k,i;

   temp_tsc = 0;

   *max_tsc = 0;

   *mean_tsc = 0;

   *min_tsc = 0xFFFFFFFF;

   *first_tsc = 0;

   k = 0;

   for (i=0;i<job_total;i++)

     if (job_list[i].ctx == context_list[ctx_num].ctx) {

       if (*first_tsc == 0) *first_tsc = job_list[i].start - log_start_tsc;

       if (job_list[i].dtsc > *max_tsc) *max_tsc = job_list[i].dtsc;

       if (job_list[i].dtsc < *min_tsc) *min_tsc = job_list[i].dtsc;

       temp_tsc += job_list[i].dtsc;

       k++;

     }

   *number = k;

   *tot_tsc = temp_tsc;

   *mean_tsc = temp_tsc / k;

   return 0;

}

int arr_stats_from_execs(int ctx_num, unsigned long long *min_tsc,

                                unsigned long long *mean_tsc,

                                unsigned long long *max_tsc) {

   unsigned long long last_start,temp_tsc,delta_start;

   int i,k;

   last_start = 0;

   temp_tsc = 0;

   *max_tsc = 0;

   *min_tsc = 0xFFFFFFFF;

   k = 0;

   for (i=0;i<exec_total;i++)

     if (exec_list[i].ctx == context_list[ctx_num].ctx) {

        if (last_start == 0) {

                last_start = exec_list[i].start;

        } else {

                delta_start = exec_list[i].start - last_start;

                if (delta_start > *max_tsc) *max_tsc = delta_start;

                if (delta_start < *min_tsc) *min_tsc = delta_start;

                temp_tsc += delta_start;

                k++;

                last_start = exec_list[i].start;

        }

      }

   *mean_tsc = temp_tsc / k;

   return 0;

}

int arr_stats_from_jobs(int ctx_num, unsigned long long *min_tsc,

                                unsigned long long *mean_tsc,

                                unsigned long long *max_tsc) {

   unsigned long long last_start,temp_tsc,delta_start;

   int i,k;

   last_start = 0;

   temp_tsc = 0;

   *max_tsc = 0;

   *min_tsc = 0xFFFFFFFF;

   k = 0;

   for (i=0;i<job_total;i++)

     if (job_list[i].ctx == context_list[ctx_num].ctx) {

        if (last_start == 0) {

                last_start = job_list[i].start;

        } else {

                delta_start = job_list[i].start - last_start;

                if (delta_start > *max_tsc) *max_tsc = delta_start;

                if (delta_start < *min_tsc) *min_tsc = delta_start;

                temp_tsc += delta_start;

                k++;

                last_start = job_list[i].start;

        }

      }

   *mean_tsc = temp_tsc / k;

   return 0;

}

int plot_exec_demand_function(int ctx_num, char *pidstr) {

   unsigned long long max_limit;

   char tmpstr[50];

   int i;

   gnuplot_clear();

   max_limit = total_dtsc*1000/clk_per_msec;

   for (i=0;i<exec_total;i++)

     if (exec_list[i].ctx == context_list[ctx_num].ctx) {

       int h1,h2,h3;

       h1 = ((exec_list[i].start-log_start_tsc)*1000/clk_per_msec) * DRAW_NUM / max_limit;

       h2 = ((exec_list[i].start+exec_list[i].dtsc-log_start_tsc)*1000/clk_per_msec) * DRAW_NUM / max_limit;

       for (h3=h1;h3<h2;h3++)

         if (h3 <= DRAW_NUM) draw_data[h3] += (exec_list[i].dtsc*1000/clk_per_msec)*(h3-h1)/(h2-h1);

       for (h3=h2;h3<=DRAW_NUM;h3++)

         if (h3 <= DRAW_NUM) draw_data[h3] += (exec_list[i].dtsc*1000/clk_per_msec);

     }

   sprintf(tmpstr,"Ctx [%d:%s] Demand-Function",context_list[ctx_num].ctx,pidstr);

   gnuplot_draw(tmpstr,max_limit,1);

   return 0;

}

int plot_exec_c_distrib(int ctx_num, unsigned long long max_tsc, char *pidstr) {

   unsigned long long max_limit;

   char tmpstr[50];

   int i,h;

   gnuplot_clear();

   max_limit = max_tsc*1000/clk_per_msec;

   for (i=0;i<exec_total;i++)

      if (exec_list[i].ctx == context_list[ctx_num].ctx) {

        h = (exec_list[i].dtsc*1000/clk_per_msec) * DRAW_NUM / max_limit;

        if (h <= DRAW_NUM) draw_data[h]++;

      }

   sprintf(tmpstr,"Ctx [%d:%s] Exec C-dist",context_list[ctx_num].ctx,pidstr);

   gnuplot_draw(tmpstr,max_limit,0);

   return 0;

}

int plot_job_c_distrib(int ctx_num, unsigned long long max_tsc, char *pidstr) {

   unsigned long long max_limit;

   char tmpstr[50];

   int i,h;

   gnuplot_clear();

   max_limit = max_tsc*1000/clk_per_msec;

   for (i=0;i<job_total;i++)

      if (job_list[i].ctx == context_list[ctx_num].ctx) {

        h = (job_list[i].dtsc*1000/clk_per_msec) * DRAW_NUM / max_limit;

        if (h <= DRAW_NUM) draw_data[h]++;

      }

   sprintf(tmpstr,"Ctx [%d:%s] Job C-dist",context_list[ctx_num].ctx,pidstr);

   gnuplot_draw(tmpstr,max_limit,0);

   return 0;

}

int plot_exec_arr_distrib(int ctx_num, unsigned long long max_tsc, char *pidstr) {

  unsigned long long max_limit,last_start,delta_start;

  char tmpstr[50];

  int i,h;

  gnuplot_clear();

  max_limit = max_tsc*1000/clk_per_msec;

  last_start = 0;

  for (i=0;i<exec_total;i++)

    if (exec_list[i].ctx == context_list[ctx_num].ctx) {

      if (last_start == 0) {

              last_start = exec_list[i].start;

      } else {

              delta_start = exec_list[i].start - last_start;

              h = (delta_start*1000/clk_per_msec) * DRAW_NUM / max_limit;

              if (h <= DRAW_NUM) draw_data[h]++;

              last_start = exec_list[i].start;

      }

    }

  sprintf(tmpstr,"Ctx [%d:%s] Exec Arr.Delta",context_list[ctx_num].ctx,pidstr);

  gnuplot_draw(tmpstr,max_limit,0);

  return 0;

}

int plot_job_arr_distrib(int ctx_num, unsigned long long max_tsc, char *pidstr) {

  unsigned long long max_limit,last_start,delta_start;

  char tmpstr[50];

  int i,h;

  gnuplot_clear();

  max_limit = max_tsc*1000/clk_per_msec;

  last_start = 0;

  for (i=0;i<job_total;i++)

    if (job_list[i].ctx == context_list[ctx_num].ctx) {

      if (last_start == 0) {

              last_start = job_list[i].start;

      } else {

              delta_start = job_list[i].start - last_start;

              h = (delta_start*1000/clk_per_msec) * DRAW_NUM / max_limit;

              if (h <= DRAW_NUM) draw_data[h]++;

              last_start = job_list[i].start;

      }

    }

  sprintf(tmpstr,"Ctx [%d:%s] Job Arr.Delta",context_list[ctx_num].ctx,pidstr);

  gnuplot_draw(tmpstr,max_limit,0);

  return 0;

}

int create_lists(char *filename) {

  FILE *input_file;

  int type,par1,par2,k,i,state;

  int current_context = 0;

  int current_exec = 0;

  int current_endcycle = 0;

  unsigned long long last_tsc, tsc;

  input_file = fopen(filename,"r");

  /* Memory alloc */

  exec_list = malloc(sizeof(struct ctx_exec) * MAXJOB);

  context_list = malloc(sizeof(struct ctx_to_pid) * MAXCONTEXT);

  endcycle_list = malloc(sizeof(struct endcycle) * MAXJOB);

  /* Finite-State machine

   *

   * FS-Machine states:

        1 - Context running

        2 - Interrupt running

        10 - End

   */

  for(i=0;i<MAXCONTEXT;i++) {

    context_list[i].ctx = 0;

    context_list[i].pid = PID_NO_DEF;

  }

  /* The start context + interrupt context */

  context_total = 2;

  current_context = 0;

  last_tsc = 0;

  context_list[0].ctx = 0;

  context_list[0].pid = PID_NO_DEF;

  context_list[1].ctx = INT_CTX;

  context_list[1].pid = INT_PID;

  state = 0;

  k = 0;

  while(!feof(input_file)) {

    fscanf(input_file,"%d %llu",&type,&tsc);

    k++;

    switch (type) {

        case 0:

        case 1:

                /* No par */

                break;

        case 2:

        case 3:

        case 4:

        case 6:

        case 7:

        case 8:

                /* 1 par */

                fscanf(input_file,"%d",&par1);

                break;

        case 5:

                /* 2 par */

                fscanf(input_file,"%d %d",&par1,&par2);

                break;

    }

    switch (type) {

        case 0:

                if (state != 0) Error(1);

                printf("EVT:Log starts at [%12llu]\n",tsc);

                last_tsc = tsc;

                log_start_tsc = tsc;

                exec_list[current_exec].start = tsc;

                state = 1;

                break;

        case 1:

                printf("EVT:Log   ends at [%12llu]\n",tsc);

                exec_list[current_exec].dtsc = tsc - last_tsc;

                exec_list[current_exec].ctx = current_context;

                current_exec++;

                last_tsc = tsc;

                log_end_tsc = tsc;

                state = 10;

                break;

        /* Int start */

        case 2:

                if (state == 0) Error(2);

                exec_list[current_exec].dtsc = tsc - last_tsc;

                exec_list[current_exec].ctx = current_context;

                current_exec++;

                last_tsc = tsc;

                current_context = INT_CTX;

                exec_list[current_exec].start = tsc;

                state = 2;

                break;

        /* Int end */

        case 3:

                if (state != 2) Error(3);              

                exec_list[current_exec].dtsc = tsc - last_tsc;

                exec_list[current_exec].ctx = current_context;

                current_exec++;

                last_tsc = tsc;

                current_context = par1;

                for (i=0;i<context_total;i++)

                        if (par1 == context_list[i].ctx) break;

                if (i == context_total) {

                        context_list[context_total].ctx = par1;

                        context_total++;

                }

                exec_list[current_exec].start = tsc;

                state = 1;

                break;

        /* Change ctx */

        case 4:

                exec_list[current_exec].dtsc = tsc - last_tsc;

                exec_list[current_exec].ctx = current_context;

                current_exec++;

                last_tsc = tsc;

                current_context = par1;

                for (i=0;i<context_total;i++)

                        if (par1 == context_list[i].ctx) break;

                if (i == context_total) {

                        context_list[context_total].ctx = par1;

                        context_total++;

                }

                exec_list[current_exec].start = tsc;

                state = 1;

                break;

        /* Task create */

        case 5:

                for (i=0;i<context_total;i++)

                        if (par1 == context_list[i].ctx) break;

                if (i == context_total) {

                        context_list[context_total].ctx = par1;

                        context_list[context_total].pid = par2;

                        context_total++;

                }

                break;

        /* Task endcycle */

        case 8:

                for (i=0;i<context_total;i++)

                        if (par1 == context_list[i].ctx) break;

                if (i == context_total) Error(4);

                endcycle_list[current_endcycle].ctx = par1;

                endcycle_list[current_endcycle].tsc = tsc;

                current_endcycle++;

                break;

    }

    if (current_exec == MAXJOB-1) {

        printf("Too many execs...\n");

        exit(3);

    }

    if (current_endcycle == MAXJOB-1) {

        printf("Too many endcycle...\n");

        exit(4);

    }

    if (state == 10) break;

  }

  endcycle_total = current_endcycle;

  exec_total = current_exec;

  return k;

}

int create_job_list() {

  int current_job = 0, h, i, k;

  int temp_ctx;

  unsigned long long temp_tsc, endcycle_start_tsc;

  unsigned long long endcycle_end_tsc;

  job_list = malloc(sizeof(struct ctx_exec) * MAXJOB);

  for (k=0;k<context_total;k++) {

    temp_ctx = context_list[k].ctx;

    endcycle_start_tsc = 0;

    for (h=0;h<endcycle_total;h++) {

      if (endcycle_list[h].ctx == temp_ctx) {

        if (endcycle_start_tsc == 0)

          endcycle_start_tsc = log_start_tsc;

        endcycle_end_tsc = endcycle_list[h].tsc;

        temp_tsc = 0;

        job_list[current_job].start = 0;

        for(i=0;i<exec_total;i++)

                if (exec_list[i].ctx == temp_ctx) {

                        if (exec_list[i].start < endcycle_end_tsc &&

                                exec_list[i].start >= endcycle_start_tsc) {

                                if (job_list[current_job].start == 0)

                                  job_list[current_job].start = exec_list[i].start;

                                temp_tsc += exec_list[i].dtsc;

                        }

                }

        job_list[current_job].dtsc = temp_tsc;

        job_list[current_job].ctx = temp_ctx;

        current_job++;

        endcycle_start_tsc = endcycle_end_tsc;

      }

    }

  }    

  job_total = current_job;

  return 0;

}

int elaborate_statistics(int num, int task_type) {

  char pidstr[10];

  unsigned long long tot_tsc,mean_tsc,max_tsc,min_tsc,first_tsc;

  int number;

  switch (context_list[num].pid) {

      case PID_NO_DEF:

        sprintf(pidstr,"NODEF");

        break;

      case INT_PID:

        sprintf(pidstr,"  INT");

        break;

      default:

        sprintf(pidstr,"%5d",context_list[num].pid);

        break;

  }

  if (task_type == BACKGROUND) {

    printf("Background Task CTX [%5d] PID [%s]\n",context_list[num].ctx,pidstr);

    stats_from_execs(num,&tot_tsc,&min_tsc,&mean_tsc,&max_tsc,&first_tsc,&number);    

    printf("  Total Execution dTSC [%12llu] us [%12llu]\n",tot_tsc,tot_tsc*1000/clk_per_msec);

    printf("  Mean  CPU Bandwidth  [%11f%c]\n",(double)(tot_tsc)/(double)(total_dtsc)*100.0,'%');

    printf("    after first exec   [%11f%c]\n",(double)(tot_tsc)/(double)(total_dtsc-first_tsc)*100.0,'%');

    printf("  Execs Number         [%12d]\n",number);

    printf("  Min  Exec       dTSC [%12llu] us [%12llu]\n",min_tsc, min_tsc*1000/clk_per_msec);

    printf("  Mean Exec       dTSC [%12llu] us [%12llu]\n",mean_tsc, mean_tsc*1000/clk_per_msec);

    printf("  Max  Exec       dTSC [%12llu] us [%12llu]\n\n",max_tsc, max_tsc*1000/clk_per_msec);

    plot_exec_demand_function(num,pidstr);

  }

  if (task_type == INTERRUPT) {

    printf("Interrupts\n");

    stats_from_execs(num,&tot_tsc,&min_tsc,&mean_tsc,&max_tsc,&first_tsc,&number);

    printf("  Total Execution dTSC [%12llu] us [%12llu]\n",tot_tsc,tot_tsc*1000/clk_per_msec);

    printf("  Mean  CPU Bandwidth  [%11f%c]\n",(double)(tot_tsc)/(double)(total_dtsc)*100.0,'%');

    printf("    after first int    [%11f%c]\n",(double)(tot_tsc)/(double)(total_dtsc-first_tsc)*100.0,'%');

    printf("  Interrupts Number    [%12d]\n",number);

    printf("  Min  Interrupt  dTSC [%12llu] us [%12llu]\n",min_tsc,min_tsc*1000/clk_per_msec);

    printf("  Mean Interrupt  dTSC [%12llu] us [%12llu]\n",mean_tsc,mean_tsc*1000/clk_per_msec);

    printf("  Max  Interrupt  dTSC [%12llu] us [%12llu]\n\n",max_tsc,max_tsc*1000/clk_per_msec);

    plot_exec_c_distrib(num,max_tsc,pidstr);

    arr_stats_from_execs(num,&min_tsc,&mean_tsc,&max_tsc);

    printf("  Min  Arr. Delta dTSC [%12llu] us [%12llu]\n",min_tsc,min_tsc*1000/clk_per_msec);

    printf("  Mean Arr. Delta dTSC [%12llu] us [%12llu]\n",mean_tsc,mean_tsc*1000/clk_per_msec);

    printf("  Max  Arr. Delta dTSC [%12llu] us [%12llu]\n\n",max_tsc,max_tsc*1000/clk_per_msec);

    plot_exec_arr_distrib(num,max_tsc,pidstr);

  }

  if (task_type == PERIODICAL) {

    printf("Periodical Task CTX [%5d] PID [%s]\n",context_list[num].ctx,pidstr);    

    stats_from_execs(num,&tot_tsc,&min_tsc,&mean_tsc,&max_tsc,&first_tsc,&number);

    printf("  Total Execution dTSC [%12llu] us [%12llu]\n",tot_tsc,tot_tsc*1000/clk_per_msec);

    printf("  Mean  CPU Bandwidth  [%11f%c]\n",(double)(tot_tsc)/(double)(total_dtsc)*100.0,'%');

    printf("    after first exec   [%11f%c]\n",(double)(tot_tsc)/(double)(total_dtsc-first_tsc)*100.0,'%');

    printf("  Execs Number         [%12d]\n",number);

    printf("  Min  Exec       dTSC [%12llu] us [%12llu]\n",min_tsc,min_tsc*1000/clk_per_msec);

    printf("  Mean Exec       dTSC [%12llu] us [%12llu]\n",mean_tsc,mean_tsc*1000/clk_per_msec);