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yacy_search_server
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fix for division by zero in test reoutine

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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4201 6c8d7289-2bf4-0310-a012-ef5d649a1542
pull/1/head
orbiter 18 years ago
parent df38aaf7bd
commit edc4da5317
1 changed files with 14 additions and 9 deletions
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23
source/de/anomic/kelondro/kelondroRowCollection.java
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@ -626,6 +626,10 @@ public class kelondroRowCollection {
chunkcache = null; chunkcache = null;
} }
private static long d(long a, long b) {
if (b == 0) return a; else return a / b;
}
public static void test(int testsize) { public static void test(int testsize) {
kelondroRow r = new kelondroRow(new kelondroColumn[]{ kelondroRow r = new kelondroRow(new kelondroColumn[]{
new kelondroColumn("hash", kelondroColumn.celltype_string, kelondroColumn.encoder_bytes, yacySeedDB.commonHashLength, "hash")}, new kelondroColumn("hash", kelondroColumn.celltype_string, kelondroColumn.encoder_bytes, yacySeedDB.commonHashLength, "hash")},
@ -641,27 +645,27 @@ public class kelondroRowCollection {
c.add(s.getBytes()); c.add(s.getBytes());
} }
long t1 = System.currentTimeMillis(); long t1 = System.currentTimeMillis();
System.out.println("create c : " + (t1 - t0) + " milliseconds, " + (testsize / (t1 - t0)) + " entries/millisecond"); System.out.println("create c : " + (t1 - t0) + " milliseconds, " + d(testsize, (t1 - t0)) + " entries/millisecond");
kelondroRowCollection d = new kelondroRowCollection(r, testsize); kelondroRowCollection d = new kelondroRowCollection(r, testsize);
for (int i = 0; i < testsize; i++) { for (int i = 0; i < testsize; i++) {
d.add(c.get(i).getColBytes(0)); d.add(c.get(i).getColBytes(0));
} }
long t2 = System.currentTimeMillis(); long t2 = System.currentTimeMillis();
System.out.println("copy c -> d: " + (t2 - t1) + " milliseconds, " + (testsize / (t2 - t1)) + " entries/millisecond"); System.out.println("copy c -> d: " + (t2 - t1) + " milliseconds, " + d(testsize, (t2 - t1)) + " entries/millisecond");
processors = 1; processors = 1;
c.sort(); c.sort();
long t3 = System.currentTimeMillis(); long t3 = System.currentTimeMillis();
System.out.println("sort c (1) : " + (t3 - t2) + " milliseconds, " + (testsize / (t3 - t2)) + " entries/millisecond"); System.out.println("sort c (1) : " + (t3 - t2) + " milliseconds, " + d(testsize, (t3 - t2)) + " entries/millisecond");
processors = 2; processors = 2;
d.sort(); d.sort();
long t4 = System.currentTimeMillis(); long t4 = System.currentTimeMillis();
System.out.println("sort d (2) : " + (t4 - t3) + " milliseconds, " + (testsize / (t4 - t3)) + " entries/millisecond"); System.out.println("sort d (2) : " + (t4 - t3) + " milliseconds, " + d(testsize, (t4 - t3)) + " entries/millisecond");
c.uniq(); c.uniq();
long t5 = System.currentTimeMillis(); long t5 = System.currentTimeMillis();
System.out.println("uniq c : " + (t5 - t4) + " milliseconds, " + (testsize / (t5 - t4)) + " entries/millisecond"); System.out.println("uniq c : " + (t5 - t4) + " milliseconds, " + d(testsize, (t5 - t4)) + " entries/millisecond");
d.uniq(); d.uniq();
long t6 = System.currentTimeMillis(); long t6 = System.currentTimeMillis();
System.out.println("uniq d : " + (t6 - t5) + " milliseconds, " + (testsize / (t6 - t5)) + " entries/millisecond"); System.out.println("uniq d : " + (t6 - t5) + " milliseconds, " + d(testsize, (t6 - t5)) + " entries/millisecond");
a = new Random(0); a = new Random(0);
kelondroRowSet e = new kelondroRowSet(r, testsize); kelondroRowSet e = new kelondroRowSet(r, testsize);
for (int i = 0; i < testsize; i++) { for (int i = 0; i < testsize; i++) {
@ -669,13 +673,13 @@ public class kelondroRowCollection {
e.put(r.newEntry(s.getBytes())); e.put(r.newEntry(s.getBytes()));
} }
long t7 = System.currentTimeMillis(); long t7 = System.currentTimeMillis();
System.out.println("create e : " + (t7 - t6) + " milliseconds, " + (testsize / (t7 - t6)) + " entries/millisecond"); System.out.println("create e : " + (t7 - t6) + " milliseconds, " + d(testsize, (t7 - t6)) + " entries/millisecond");
e.sort(); e.sort();
long t8 = System.currentTimeMillis(); long t8 = System.currentTimeMillis();
System.out.println("sort e (2) : " + (t8 - t7) + " milliseconds, " + (testsize / (t8 - t7)) + " entries/millisecond"); System.out.println("sort e (2) : " + (t8 - t7) + " milliseconds, " + d(testsize, (t8 - t7)) + " entries/millisecond");
e.uniq(); e.uniq();
long t9 = System.currentTimeMillis(); long t9 = System.currentTimeMillis();
System.out.println("uniq e : " + (t9 - t8) + " milliseconds, " + (testsize / (t9 - t8)) + " entries/millisecond"); System.out.println("uniq e : " + (t9 - t8) + " milliseconds, " + d(testsize, (t9 - t8)) + " entries/millisecond");
boolean cis = c.isSorted(); boolean cis = c.isSorted();
long t10 = System.currentTimeMillis(); long t10 = System.currentTimeMillis();
System.out.println("c isSorted = " + ((cis) ? "true" : "false") + ": " + (t10 - t9) + " milliseconds"); System.out.println("c isSorted = " + ((cis) ? "true" : "false") + ": " + (t10 - t9) + " milliseconds");
@ -690,6 +694,7 @@ public class kelondroRowCollection {
} }
public static void main(String[] args) { public static void main(String[] args) {
test(1000);
test(10000); test(10000);
test(100000); test(100000);
//test(1000000); //test(1000000);

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