#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
+#include <unistd.h>
#include "lookup3.h"
#include "sync_chain.h"
broadcast);
static GArray* finalizeAnalysisEval(SyncState* const syncState);
static void printAnalysisStatsEval(SyncState* const syncState);
+static void writeAnalysisGraphsPlotsEval(FILE* stream, SyncState* const
+ syncState, const unsigned int i, const unsigned int j);
+static void writeAnalysisGraphsOptionsEval(FILE* stream, SyncState*
+ const syncState, const unsigned int i, const unsigned int j);
// Functions specific to this module
static void registerAnalysisEval() __attribute__((constructor (102)));
static void gfSumSquares(gpointer data, gpointer userData);
static void ghfPrintExchangeRtt(gpointer key, gpointer value, gpointer user_data);
+static void initGraphs(SyncState* const syncState);
+static void writeGraphFiles(SyncState* const syncState);
+static void dumpBinToFile(const uint32_t* const bin, const uint32_t total,
+ FILE* const file);
+static void destroyGraphs(SyncState* const syncState);
+static unsigned int binNum(const double value) __attribute__((pure));
+static double binStart(const unsigned int binNum) __attribute__((pure));
+static double binEnd(const unsigned int binNum) __attribute__((pure));
+
+
+const unsigned int binNb= 10000;
+double binBase;
static AnalysisModule analysisModuleEval= {
.name= "eval",
.analyzeBroadcast= &analyzeBroadcastEval,
.finalizeAnalysis= &finalizeAnalysisEval,
.printAnalysisStats= &printAnalysisStatsEval,
- .writeAnalysisGraphsPlots= NULL,
- .writeAnalysisGraphsOptions= NULL,
+ .writeAnalysisGraphsPlots= &writeAnalysisGraphsPlotsEval,
+ .writeAnalysisGraphsOptions= &writeAnalysisGraphsOptionsEval,
};
static ModuleOption optionEvalRttFile= {
.longName= "eval-rtt-file",
.hasArg= REQUIRED_ARG,
{.arg= NULL},
- .optionHelp= "specify the file containing rtt information",
+ .optionHelp= "specify the file containing RTT information",
.argHelp= "FILE",
};
g_hash_table_new_full(&ghfRttKeyHash, &gefRttKeyEqual,
&gdnDestroyRttKey, &gdnDestroyDouble);
}
+
+ if (syncState->graphs)
+ {
+ binBase= exp10(6. / (binNb - 2));
+ analysisData->graphs= malloc(sizeof(AnalysisGraphsEval));
+ initGraphs(syncState);
+ }
+}
+
+
+/*
+ * Create and open files used to store histogram points to genereate
+ * graphs. Allocate and populate array to store file pointers.
+ *
+ * Also create data structures to store histogram points during analysis.
+ *
+ * Args:
+ * syncState: container for synchronization data
+ */
+static void initGraphs(SyncState* const syncState)
+{
+ unsigned int i, j;
+ int retval;
+ char* cwd;
+ char name[36];
+ AnalysisDataEval* analysisData= syncState->analysisData;
+
+ cwd= changeToGraphDir(syncState->graphs);
+
+ analysisData->graphs->ttPoints= malloc(syncState->traceNb *
+ sizeof(FILE**));
+ analysisData->graphs->ttBinsArray= malloc(syncState->traceNb *
+ sizeof(uint32_t**));
+ analysisData->graphs->ttBinsTotal= malloc(syncState->traceNb *
+ sizeof(uint32_t*));
+ for (i= 0; i < syncState->traceNb; i++)
+ {
+ analysisData->graphs->ttPoints[i]= malloc(syncState->traceNb *
+ sizeof(FILE*));
+ analysisData->graphs->ttBinsArray[i]= malloc(syncState->traceNb *
+ sizeof(uint32_t*));
+ analysisData->graphs->ttBinsTotal[i]= calloc(syncState->traceNb,
+ sizeof(uint32_t));
+ for (j= 0; j < syncState->traceNb; j++)
+ {
+ if (i != j)
+ {
+ retval= snprintf(name, sizeof(name),
+ "analysis_eval_tt-%03u_to_%03u.data", i, j);
+ if (retval > sizeof(name) - 1)
+ {
+ name[sizeof(name) - 1]= '\0';
+ }
+ if ((analysisData->graphs->ttPoints[i][j]= fopen(name, "w")) ==
+ NULL)
+ {
+ g_error(strerror(errno));
+ }
+
+ analysisData->graphs->ttBinsArray[i][j]= calloc(binNb,
+ sizeof(uint32_t));
+ }
+ }
+ }
+
+ analysisData->graphs->hrttPoints= malloc(syncState->traceNb *
+ sizeof(FILE**));
+ analysisData->graphs->hrttBinsArray= malloc(syncState->traceNb *
+ sizeof(uint32_t**));
+ analysisData->graphs->hrttBinsTotal= malloc(syncState->traceNb *
+ sizeof(uint32_t*));
+ for (i= 0; i < syncState->traceNb; i++)
+ {
+ analysisData->graphs->hrttPoints[i]= malloc(i * sizeof(FILE*));
+ analysisData->graphs->hrttBinsArray[i]= malloc(i * sizeof(uint32_t*));
+ analysisData->graphs->hrttBinsTotal[i]= calloc(i, sizeof(uint32_t));
+ for (j= 0; j < i; j++)
+ {
+ retval= snprintf(name, sizeof(name),
+ "analysis_eval_hrtt-%03u_and_%03u.data", i, j);
+ if (retval > sizeof(name) - 1)
+ {
+ name[sizeof(name) - 1]= '\0';
+ }
+ if ((analysisData->graphs->hrttPoints[i][j]= fopen(name, "w")) ==
+ NULL)
+ {
+ g_error(strerror(errno));
+ }
+
+ analysisData->graphs->hrttBinsArray[i][j]= calloc(binNb,
+ sizeof(uint32_t));
+ }
+ }
+
+ retval= chdir(cwd);
+ if (retval == -1)
+ {
+ g_error(strerror(errno));
+ }
+ free(cwd);
+}
+
+
+/*
+ * Write histogram points to all files to generate graphs.
+ *
+ * Args:
+ * syncState: container for synchronization data
+ */
+static void writeGraphFiles(SyncState* const syncState)
+{
+ unsigned int i, j;
+ AnalysisDataEval* analysisData= syncState->analysisData;
+
+ for (i= 0; i < syncState->traceNb; i++)
+ {
+ for (j= 0; j < syncState->traceNb; j++)
+ {
+ if (i != j)
+ {
+ dumpBinToFile(analysisData->graphs->ttBinsArray[i][j],
+ analysisData->graphs->ttBinsTotal[i][j] -
+ analysisData->graphs->ttBinsArray[i][j][binNb - 1],
+ analysisData->graphs->ttPoints[i][j]);
+ }
+
+ if (i > j)
+ {
+ dumpBinToFile(analysisData->graphs->hrttBinsArray[i][j],
+ analysisData->graphs->hrttBinsTotal[i][j] -
+ analysisData->graphs->hrttBinsArray[i][j][binNb - 1],
+ analysisData->graphs->hrttPoints[i][j]);
+ }
+ }
+ }
+}
+
+
+/*
+ * Write the content of one bin in a histogram point file
+ *
+ * Args:
+ * bin: array of values that make up a histogram
+ * total: total number of messages in bins 0 to binNb - 2
+ * file: FILE*
+ */
+static void dumpBinToFile(const uint32_t* const bin, const uint32_t total,
+ FILE* const file)
+{
+ unsigned int i;
+
+ // Last bin is skipped because is continues till infinity
+ for (i= 0; i < binNb - 1; i++)
+ {
+ if (bin[i] > 0)
+ {
+ fprintf(file, "%20.9f %20.9f %20.9f\n", (binStart(i) + binEnd(i)) / 2, (double) bin[i]
+ / ((binEnd(i) - binStart(i)) * total), binEnd(i) - binStart(i));
+ }
+ }
+}
+
+
+/*
+ * Close files used to store histogram points to generate graphs. Deallocate
+ * arrays of file pointers and arrays used to store histogram points during
+ * analysis.
+ *
+ * Args:
+ * syncState: container for synchronization data
+ */
+static void destroyGraphs(SyncState* const syncState)
+{
+ unsigned int i, j;
+ AnalysisDataEval* analysisData= syncState->analysisData;
+ int retval;
+
+ if (analysisData->graphs == NULL || analysisData->graphs->ttPoints ==
+ NULL)
+ {
+ return;
+ }
+
+ for (i= 0; i < syncState->traceNb; i++)
+ {
+ for (j= 0; j < syncState->traceNb; j++)
+ {
+ if (i != j)
+ {
+ retval= fclose(analysisData->graphs->ttPoints[i][j]);
+ if (retval != 0)
+ {
+ g_error(strerror(errno));
+ }
+
+ free(analysisData->graphs->ttBinsArray[i][j]);
+ }
+ }
+ free(analysisData->graphs->ttPoints[i]);
+ free(analysisData->graphs->ttBinsArray[i]);
+ free(analysisData->graphs->ttBinsTotal[i]);
+ }
+ free(analysisData->graphs->ttPoints);
+ free(analysisData->graphs->ttBinsArray);
+ free(analysisData->graphs->ttBinsTotal);
+
+ for (i= 0; i < syncState->traceNb; i++)
+ {
+ for (j= 0; j < i; j++)
+ {
+ retval= fclose(analysisData->graphs->hrttPoints[i][j]);
+ if (retval != 0)
+ {
+ g_error(strerror(errno));
+ }
+
+ free(analysisData->graphs->hrttBinsArray[i][j]);
+ }
+ free(analysisData->graphs->hrttPoints[i]);
+ free(analysisData->graphs->hrttBinsArray[i]);
+ free(analysisData->graphs->hrttBinsTotal[i]);
+ }
+ free(analysisData->graphs->hrttPoints);
+ free(analysisData->graphs->hrttBinsArray);
+ free(analysisData->graphs->hrttBinsTotal);
+
+ analysisData->graphs->ttPoints= NULL;
}
free(analysisData->stats);
}
+ if (syncState->graphs && analysisData->graphs)
+ {
+ destroyGraphs(syncState);
+ free(analysisData->graphs);
+ }
+
free(syncState->analysisData);
syncState->analysisData= NULL;
}
{
messageStats->inversionNb++;
}
+ else if (syncState->graphs)
+ {
+ analysisData->graphs->ttBinsArray[message->outE->traceNum][message->inE->traceNum][binNum(tt)]++;
+ analysisData->graphs->ttBinsTotal[message->outE->traceNum][message->inE->traceNum]++;
+ }
g_assert(message->inE->type == TCP);
rttKey.saddr=
*rtt= wallTimeSub(&m1->inE->wallTime, &m1->outE->wallTime) -
wallTimeSub(&m2->outE->wallTime, &m2->inE->wallTime);
+ if (syncState->graphs)
+ {
+ unsigned int row= MAX(m1->inE->traceNum, m1->outE->traceNum);
+ unsigned int col= MIN(m1->inE->traceNum, m1->outE->traceNum);
+
+ analysisData->graphs->hrttBinsArray[row][col][binNum(*rtt / 2.)]++;
+ analysisData->graphs->hrttBinsTotal[row][col]++;
+ }
+
g_assert(m1->inE->type == TCP);
rttKey= malloc(sizeof(struct RttKey));
rttKey->saddr=
{
GArray* factors;
unsigned int i;
+ AnalysisDataEval* analysisData= syncState->analysisData;
+
+ if (syncState->graphs && analysisData->graphs)
+ {
+ writeGraphFiles(syncState);
+ destroyGraphs(syncState);
+ analysisData->graphs= NULL;
+ }
factors= g_array_sized_new(FALSE, FALSE, sizeof(Factors),
syncState->traceNb);
*(double*) userData+= pow(event->wallTime.seconds + event->wallTime.nanosec
/ 1e9, 2.);
}
+
+
+/*
+ * Figure out the bin in a histogram to which a value belongs.
+ *
+ * This uses exponentially sized bins that go from 0 to infinity.
+ *
+ * Args:
+ * value: the value, must be >=0, or else expect the unexpected
+ * (floating point exception)
+ */
+static unsigned int binNum(const double value)
+{
+ if (value == 0)
+ {
+ return 0;
+ }
+ else
+ {
+ double result= floor(log(value) / log(binBase)) + (binNb - 1);
+
+ if (result < 0.)
+ {
+ return 0.;
+ }
+ else
+ {
+ return result;
+ }
+ }
+}
+
+
+/*
+ * Figure out the start of the interval of a bin in a histogram. The starting
+ * value is included in the interval.
+ *
+ * This uses exponentially sized bins that go from 0 to infinity.
+ *
+ * Args:
+ * binNum: bin number
+ */
+static double binStart(const unsigned int binNum)
+{
+ g_assert(binNum < binNb);
+
+ if (binNum == 0)
+ {
+ return 0;
+ }
+ else
+ {
+ return pow(binBase, (double) binNum - (binNb - 1));
+ }
+}
+
+
+/*
+ * Figure out the end of the interval of a bin in a histogram. The end value
+ * is not included in the interval.
+ *
+ * This uses exponentially sized bins that go from 0 to infinity.
+ *
+ * Args:
+ * binNum: bin number
+ */
+static double binEnd(const unsigned int binNum)
+{
+ g_assert(binNum < binNb);
+
+ if (binNum < binNb)
+ {
+ return pow(binBase, (double) binNum - (binNb - 2));
+ }
+ else
+ {
+ return INFINITY;
+ }
+}
+
+
+/*
+ * Write the analysis-specific graph lines in the gnuplot script.
+ *
+ * Args:
+ * stream: stream where to write the data
+ * syncState: container for synchronization data
+ * i: first trace number
+ * j: second trace number, garanteed to be larger than i
+ */
+static void writeAnalysisGraphsPlotsEval(FILE* stream, SyncState* const
+ syncState, const unsigned int i, const unsigned int j)
+{
+ fprintf(stream,
+ "\t\"analysis_eval_hrtt-%2$03d_and_%1$03d.data\" "
+ "title \"RTT/2\" with boxes linetype 1 linewidth 3 "
+ "linecolor rgb \"black\" fill transparent solid 0.75, \\\n"
+ /*"\t\"analysis_eval_tt-%1$03d_to_%2$03d.data\" "
+ "title \"%1$u to %2$u\" with boxes linetype 1 linewidth 3 "
+ "linecolor rgb \"black\" fill transparent solid 0.5, \\\n"
+ "\t\"analysis_eval_tt-%2$03d_to_%1$03d.data\" "
+ "title \"%2$u to %1$u\" with boxes linetype 1 linewidth 3 "
+ "linecolor rgb \"black\" fill transparent solid 0.25, \\\n"*/
+ , i, j);
+ /*
+ fprintf(stream,
+ "\t\"analysis_eval_hrtt-%2$03d_and_%1$03d.data\" "
+ "title \"RTT/2\" with linespoints linetype 1 linewidth 3 "
+ "linecolor rgb \"black\", \\\n"
+ "\t\"analysis_eval_tt-%1$03d_to_%2$03d.data\" "
+ "title \"%1$u to %2$u\" with linespoints linetype 1 linewidth 3 "
+ "linecolor rgb \"gray70\", \\\n"
+ "\t\"analysis_eval_tt-%2$03d_to_%1$03d.data\" "
+ "title \"%2$u to %1$u\" with linespoints linetype 1 linewidth 3 "
+ "linecolor rgb \"gray40\", \\\n", i, j);
+*/
+}
+
+
+/*
+ * Write the analysis-specific options in the gnuplot script.
+ *
+ * Args:
+ * stream: stream where to write the data
+ * syncState: container for synchronization data
+ * i: first trace number
+ * j: second trace number, garanteed to be larger than i
+ */
+static void writeAnalysisGraphsOptionsEval(FILE* stream, SyncState*
+ const syncState, const unsigned int i, const unsigned int j)
+{
+ fprintf(stream,
+ "set xlabel \"Message Latency (s)\"\n"
+ "set ylabel \"Proportion of messages per second\"\n");
+}
projects / lttv.git / commitdiff
