KNN Benches: added k as an optional cmdline argument

1 files changed, 4 insertions, 5 deletions

diff --git a/benchmarks/vptree_knn_bench.cpp b/benchmarks/vptree_knn_bench.cpp
index 0021c4a..d8247e4 100644
--- a/benchmarks/vptree_knn_bench.cpp
+++ b/benchmarks/vptree_knn_bench.cpp
@@ -3,7 +3,7 @@
 int main(int argc, char **argv)
 {
     if (argc < 5) {
-        fprintf(stderr, "Usage: vptree_knn_bench <filename> <record_count> <delete_proportion> <query_file>\n");
+        fprintf(stderr, "Usage: vptree_knn_bench <filename> <record_count> <delete_proportion> <query_file> [k]\n");
         exit(EXIT_FAILURE);
     }
 
@@ -11,15 +11,14 @@ int main(int argc, char **argv)
     size_t record_count = atol(argv[2]);
     double delete_prop = atof(argv[3]);
     std::string qfilename = std::string(argv[4]);
+    size_t k = (argc == 6) ? atol(argv[5]) : 10;
 
     size_t buffer_cap = 12000;
     size_t scale_factor = 6;
     double max_delete_prop = delete_prop;
 
-    double insert_batch = 0.1; 
-
     init_bench_env(record_count, true);
-    auto queries = read_knn_queries<de::KNNQueryParms<Word2VecRec>>(qfilename, 10);
+    auto queries = read_knn_queries<de::KNNQueryParms<Word2VecRec>>(qfilename, k);
 
     auto de_vp_knn = ExtendedVPTree_KNN(buffer_cap, scale_factor, max_delete_prop);
 
@@ -30,7 +29,7 @@ int main(int argc, char **argv)
 
     // warm up the tree with initial_insertions number of initially inserted
     // records
-    size_t warmup_cnt = insert_batch * record_count;
+    size_t warmup_cnt = 0.1 * record_count;
     warmup<ExtendedVPTree_KNN, Word2VecRec>(datafile, de_vp_knn, warmup_cnt, delete_prop, to_delete, true, true);
 
     size_t insert_cnt = record_count - warmup_cnt;