Merge pull request #4 from dbrumbaugh/master

Updates for VLDB revision

1 files changed, 100 insertions, 0 deletions

diff --git a/benchmarks/vldb/fst_bench.cpp b/benchmarks/vldb/fst_bench.cpp
new file mode 100644
index 0000000..276a922
--- /dev/null
+++ b/benchmarks/vldb/fst_bench.cpp
@@ -0,0 +1,100 @@
+/*
+ *
+ */
+
+#define ENABLE_TIMER
+#define TS_TEST
+
+#include <thread>
+
+#include "framework/DynamicExtension.h"
+#include "shard/FSTrie.h"
+#include "query/pointlookup.h"
+#include "framework/interface/Record.h"
+#include "file_util.h"
+#include "standard_benchmarks.h"
+
+#include <gsl/gsl_rng.h>
+
+#include "psu-util/timer.h"
+
+
+typedef de::Record<const char *, uint64_t> Rec;
+typedef de::FSTrie<Rec> Shard;
+typedef de::pl::Query<Rec, Shard> Q;
+typedef de::DynamicExtension<Rec, Shard, Q, de::LayoutPolicy::TEIRING, de::DeletePolicy::TOMBSTONE, de::SerialScheduler> Ext;
+typedef de::pl::Parms<Rec> QP;
+
+void usage(char *progname) {
+    fprintf(stderr, "%s reccnt datafile\n", progname);
+}
+
+int main(int argc, char **argv) {
+
+    if (argc < 3) {
+        usage(argv[0]);
+        exit(EXIT_FAILURE);
+    }
+
+    size_t n = atol(argv[1]);
+    std::string d_fname = std::string(argv[2]);
+
+    auto extension = new Ext(12000, 12001, 8, 0, 64);
+    gsl_rng * rng = gsl_rng_alloc(gsl_rng_mt19937);
+    
+    auto strings = read_string_file(d_fname, n);
+    auto queries = generate_string_lookup_queries<QP>(strings, 1000, rng);
+
+    std::vector<Rec> data;
+    for (size_t i=0; i<strings.size(); i++) {
+        data.push_back({strings[i].get(), i, strlen(strings[i].get())});
+    }
+
+    std::vector<size_t> to_delete(n * delete_proportion);
+    size_t j=0;
+    for (size_t i=0; i<strings.size() && j<to_delete.size(); i++) {
+        if (gsl_rng_uniform(rng) <= delete_proportion) {
+            to_delete[j++] = i;
+        } 
+    }
+
+    /* warmup structure w/ 10% of records */
+    size_t warmup = .1 * n;
+    size_t delete_idx = 0;
+    insert_records<Ext, Rec>(extension, 0, warmup, data, to_delete, delete_idx, false, rng);
+
+    extension->await_next_epoch();
+
+    TIMER_INIT();
+
+    TIMER_START();
+    insert_records<Ext, Rec>(extension, warmup, data.size(), data, to_delete, delete_idx, true, rng);
+    TIMER_STOP();
+
+    auto insert_latency = TIMER_RESULT();
+    size_t insert_throughput = (size_t) ((double) (n - warmup) / (double) insert_latency * 1e9);
+
+    TIMER_START();
+    run_queries<Ext, QP>(extension, queries);
+    TIMER_STOP();
+
+    auto query_latency = TIMER_RESULT() / queries.size();
+
+    auto shard = extension->create_static_structure();
+
+    TIMER_START();
+    run_static_queries<Shard, QP, Q>(shard, queries);
+    TIMER_STOP();
+
+    auto static_latency = TIMER_RESULT() / queries.size();
+
+    auto ext_size = extension->get_memory_usage() + extension->get_aux_memory_usage();
+    auto static_size = shard->get_memory_usage(); //+ shard->get_aux_memory_usage();
+
+    fprintf(stdout, "%ld\t%ld\t%ld\t%ld\t%ld\n", insert_throughput, query_latency, ext_size, static_latency, static_size);
+
+    gsl_rng_free(rng);
+    delete extension;
+    fflush(stderr);
+}
+