Reset number of threads less often

2018-09-27 15:49:31 -07:00
parent 7ee910e86b
commit d8c73cd607
1 changed files with 3 additions and 2 deletions
@@ -1864,8 +1864,9 @@ static int fuzzerTests_newAPI(U32 seed, U32 nbTests, unsigned startTest,
                    CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, pledgedSrcSize) );
                }

-                /* multi-threading parameters */
-                {   U32 const nbThreadsCandidate = (FUZ_rand(&lseed) & 4) + 1;
+                /* multi-threading parameters. Only adjust ocassionally for small tests. */
+                if (bigTests || (FUZ_rand(&lseed) & 0xF) == 0xF) {
+                    U32 const nbThreadsCandidate = (FUZ_rand(&lseed) & 4) + 1;
                    U32 const nbThreadsAdjusted = (windowLogMalus < nbThreadsCandidate) ? nbThreadsCandidate - windowLogMalus : 1;
                    U32 const nbThreads = MIN(nbThreadsAdjusted, nbThreadsMax);
                    DISPLAYLEVEL(5, "t%u: nbThreads : %u \n", testNb, nbThreads);