| #include <stdio.h> |
| #include "Main.h" |
| #include "Defines.h" |
| #include "HpFile.h" |
| #include "Error.h" |
| #include "Utilities.h" |
| |
| /* own stuff */ |
| #include "TraceElement.h" |
| |
| /* |
| * Compute the total volume for each identifier, and the grand |
| * total of these totals. The identifiers whose totals when |
| * added together amount to less that a threshold percentage |
| * (default 1%) of the grand total are considered to be ``trace |
| * elements'' and they are thrown away. |
| */ |
| |
| extern void free(); |
| |
| extern floatish thresholdpercent; |
| |
| void TraceElement() |
| { |
| intish i; |
| intish j; |
| struct chunk* ch; |
| floatish grandtotal; |
| intish min; |
| floatish t; |
| floatish p; |
| struct entry* e; |
| intish *totals; |
| |
| totals = (intish *) xmalloc(nidents * sizeof(intish)); |
| |
| /* find totals */ |
| |
| for (i = 0; i < nidents; i++) { |
| totals[ i ] = 0; |
| } |
| |
| for (i = 0; i < nidents; i++) { |
| for (ch = identtable[i]->chk; ch; ch = ch->next) { |
| for (j = 0; j < ch->nd; j++) { |
| totals[ i ] += ch->d[j].value; |
| } |
| } |
| } |
| |
| /* sort on the basis of total */ |
| |
| for (i = 0; i < nidents-1; i++) { |
| min = i; |
| for (j = i+1; j < nidents; j++) { |
| if (totals[ j ] < totals[ min ]) { |
| min = j; |
| } |
| } |
| |
| t = totals[ min ]; |
| totals[ min ] = totals[ i ]; |
| totals[ i ] = t; |
| |
| e = identtable[ min ]; |
| identtable[ min ] = identtable[ i ]; |
| identtable[ i ] = e; |
| } |
| |
| |
| /* find the grand total (NB: can get *BIG*!) */ |
| |
| grandtotal = 0.0; |
| |
| for (i = 0; i < nidents; i++) { |
| grandtotal += (floatish) totals[ i ]; |
| } |
| |
| t = 0.0; /* cumulative percentage */ |
| |
| for (i = 0; i < nidents; i++) { |
| p = (100.0 * (floatish) totals[i]) / grandtotal; |
| t = t + p; |
| if (t >= THRESHOLD_PERCENT) { |
| break; |
| } |
| } |
| |
| /* identifiers from 0 to i-1 should be removed */ |
| for (j = 0; i < nidents; i++, j++) { |
| identtable[j] = identtable[i]; |
| } |
| |
| nidents = j; |
| |
| free(totals); |
| } |