HDFFV10601: Adding performance test to verify the improvement.

1 files changed, 361 insertions, 0 deletions

diff --git a/tools/test/perform/chunk_cache.c b/tools/test/perform/chunk_cache.c
new file mode 100644
index 0000000..9a6315a
--- /dev/null
+++ b/tools/test/perform/chunk_cache.c
@@ -0,0 +1,361 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the COPYING file, which can be found at the root of the source code       *
+ * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
+ * If you do not have access to either file, you may request a copy from     *
+ * help@hdfgroup.org.                                                        *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ *  Purpose: check the performance of chunk cache in these two cases (HDFFV-10601):
+ *          1. partial chunks exist along any dimension.
+ *          2. number of slots in chunk cache is smaller than the number of chunks
+ *             in the fastest-growing dimension.
+ */
+#include <time.h>
+#include "hdf5.h"
+
+#define FILENAME    "chunk_cache_perf.h5"
+
+#define RANK        2
+
+#define DSET1_NAME  "partial_chunks"
+#define DSET1_DIM1   9 * 1000
+#define DSET1_DIM2   9
+#define CHUNK1_DIM1  2 * 1000
+#define CHUNK1_DIM2  2
+
+#define DSET2_NAME  "hash_value"
+#define DSET2_DIM1   300
+#define DSET2_DIM2   600
+#define CHUNK2_DIM1  100
+#define CHUNK2_DIM2  100
+
+#define RDCC_NSLOTS  5
+#define RDCC_NBYTES  1024 * 1024 * 10
+#define RDCC_W0      0.75F
+
+#define FILTER_COUNTER    306
+static size_t    nbytes_global;
+
+typedef struct test_time_t {
+    long tv_sec;
+    long tv_usec;
+} test_time_t;
+
+/* Local function prototypes for the dummy filter */
+static size_t
+counter (unsigned flags, size_t cd_nelmts,
+         const unsigned *cd_values, size_t nbytes,
+         size_t *buf_size, void **buf);
+
+/* This message derives from H5Z */
+const H5Z_class2_t H5Z_COUNTER[1] = {{
+    H5Z_CLASS_T_VERS,           /* H5Z_class_t version          */
+    FILTER_COUNTER,             /* Filter id number             */
+    1, 1,                       /* Encoding and decoding enabled */
+    "counter",                  /* Filter name for debugging    */
+    NULL,                       /* The "can apply" callback     */
+    NULL,                       /* The "set local" callback     */
+    counter,                    /* The actual filter function   */
+}};
+
+/*-------------------------------------------------------------------------
+ *      Count number of bytes but don't do anything else.  Keep
+ *      track of the data of chunks being read from file into memory.
+ */
+static size_t
+counter (unsigned flags, size_t cd_nelmts,
+         const unsigned *cd_values, size_t nbytes,
+         size_t *buf_size, void **buf)
+{
+    nbytes_global += nbytes;
+    return nbytes;
+}
+
+/*---------------------------------------------------------------------------*/
+static int
+test_time_get_current(test_time_t *tv)
+{
+    struct timespec tp;
+    
+    if (!tv)
+        return -1;
+    if (clock_gettime(CLOCK_MONOTONIC, &tp))
+        return -1;
+    
+    tv->tv_sec = tp.tv_sec;
+    tv->tv_usec = tp.tv_nsec / 1000;
+    
+    return 0;
+}
+
+/*---------------------------------------------------------------------------*/
+static double
+test_time_to_double(test_time_t tv)
+{
+    return (double) tv.tv_sec + (double) (tv.tv_usec) * 0.000001;
+}
+
+/*---------------------------------------------------------------------------*/
+static test_time_t
+test_time_add(test_time_t in1, test_time_t in2)
+{
+    test_time_t out;
+    
+    out.tv_sec = in1.tv_sec + in2.tv_sec;
+    out.tv_usec = in1.tv_usec + in2.tv_usec;
+    if(out.tv_usec > 1000000) {
+        out.tv_usec -= 1000000;
+        out.tv_sec += 1;
+    }
+    
+    return out;
+}
+
+/*---------------------------------------------------------------------------*/
+static test_time_t
+test_time_subtract(test_time_t in1, test_time_t in2)
+{
+    test_time_t out;
+    
+    out.tv_sec = in1.tv_sec - in2.tv_sec;
+    out.tv_usec = in1.tv_usec - in2.tv_usec;
+    if(out.tv_usec < 0) {
+        out.tv_usec += 1000000;
+        out.tv_sec -= 1;
+    }
+    
+    return out;
+}
+
+/*-------------------------------------------------------------------------------
+ *      Create a chunked dataset with partial chunks along either dimensions:
+ *          dataset dimension:  9000 x 9
+ *          chunk dimension:    2000 x 2
+ */
+static void create_dset1(hid_t file)
+{
+    hid_t        dataspace, dataset;
+    hid_t        dcpl;
+    hsize_t      dims[RANK]  = {DSET1_DIM1, DSET1_DIM2};
+    herr_t       status;
+    hsize_t      chunk_dims[RANK] = {CHUNK1_DIM1, CHUNK1_DIM2};
+    int          data[DSET1_DIM1][DSET1_DIM2];    /* data for writing */
+    int          i, j;
+    
+    /* Create the data space. */
+    dataspace = H5Screate_simple (RANK, dims, NULL);
+    
+    /* Modify dataset creation properties, i.e. enable chunking  */
+    dcpl = H5Pcreate (H5P_DATASET_CREATE);
+    status = H5Pset_chunk (dcpl, RANK, chunk_dims);
+    
+    /* Set the dummy filter simply for counting the number of bytes being read into the memory */
+    H5Zregister(H5Z_COUNTER);
+    H5Pset_filter(dcpl, FILTER_COUNTER, 0, 0, NULL);
+    
+    /* Create a new dataset within the file using chunk creation properties.  */
+    dataset = H5Dcreate2 (file, DSET1_NAME, H5T_NATIVE_INT, dataspace,
+                          H5P_DEFAULT, dcpl, H5P_DEFAULT);
+    
+    for (i = 0; i < DSET1_DIM1; i++)
+        for (j = 0; j < DSET1_DIM2; j++)
+            data[i][j] = i+j;
+    
+    /* Write data to dataset */
+    status = H5Dwrite (dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
+                       H5P_DEFAULT, data);
+    
+    /* Close resources */
+    status = H5Dclose (dataset);
+    status = H5Pclose (dcpl);
+    status = H5Sclose (dataspace);
+}
+
+/*---------------------------------------------------------------------------
+ *      Create a chunked dataset for testing hash values:
+ *          dataset dimensions: 300 x 600
+ *          chunk dimensions:   100 x 100
+ */
+static void create_dset2(hid_t file)
+{
+    hid_t        dataspace, dataset;
+    hid_t        dcpl;
+    hsize_t      dims[RANK]  = {DSET2_DIM1, DSET2_DIM2};
+    herr_t       status;
+    hsize_t      chunk_dims[RANK] = {CHUNK2_DIM1, CHUNK2_DIM2};
+    int          data[DSET2_DIM1][DSET2_DIM2];    /* data for writing */
+    int          i, j;
+    
+    /* Create the data space. */
+    dataspace = H5Screate_simple (RANK, dims, NULL);
+    
+    /* Modify dataset creation properties, i.e. enable chunking  */
+    dcpl = H5Pcreate (H5P_DATASET_CREATE);
+    status = H5Pset_chunk (dcpl, RANK, chunk_dims);
+    
+    /* Set the dummy filter simply for counting the number of bytes being read into the memory */
+    H5Zregister(H5Z_COUNTER);
+    H5Pset_filter(dcpl, FILTER_COUNTER, 0, 0, NULL);
+    
+    /* Create a new dataset within the file using chunk creation properties.  */
+    dataset = H5Dcreate2 (file, DSET2_NAME, H5T_NATIVE_INT, dataspace,
+                          H5P_DEFAULT, dcpl, H5P_DEFAULT);
+    
+    for (i = 0; i < DSET2_DIM1; i++)
+        for (j = 0; j < DSET2_DIM2; j++)
+            data[i][j] = i+j;
+    
+    /* Write data to dataset */
+    status = H5Dwrite (dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
+                       H5P_DEFAULT, data);
+    
+    /* Close resources */
+    status = H5Dclose (dataset);
+    status = H5Pclose (dcpl);
+    status = H5Sclose (dataspace);
+}
+/*---------------------------------------------------------------------------
+ *      Check the performance of the chunk cache when partial chunks exist
+ *      along the dataset dimensions.
+ */
+static void check_partial_chunks_perf(hid_t file)
+{
+    hid_t        dataset;
+    hid_t        filespace;
+    hid_t        memspace;
+    hid_t        dapl;
+    
+    herr_t       status;
+    int          rdata[DSET1_DIM2];   /* data for reading */
+    int          i;
+    
+    hsize_t      row_rank = 1;
+    hsize_t      row_dim[1] = {DSET1_DIM2};
+    hsize_t      start[RANK] = {0, 0};
+    hsize_t      count[RANK] = {1, DSET1_DIM2};
+    test_time_t t = {0, 0}, t1 = {0, 0}, t2 = {0, 0};
+    
+    dapl = H5Pcreate(H5P_DATASET_ACCESS);
+    status = H5Pset_chunk_cache (dapl, RDCC_NSLOTS, RDCC_NBYTES, RDCC_W0);
+
+    dataset = H5Dopen2 (file, DSET1_NAME, dapl);
+    
+    memspace = H5Screate_simple(row_rank, row_dim, NULL);
+    filespace = H5Dget_space(dataset);
+    
+    nbytes_global = 0;
+    
+    test_time_get_current(&t1);
+    
+    /* Read the data row by row */
+    for(i = 0; i < DSET1_DIM1; i++) {
+        start[0] = i;
+        status = H5Sselect_hyperslab(filespace, H5S_SELECT_SET,
+                                     start, NULL, count, NULL);
+        
+        status = H5Dread (dataset, H5T_NATIVE_INT, memspace, filespace,
+                          H5P_DEFAULT, rdata);
+    }
+    
+    test_time_get_current(&t2);
+    t = test_time_add(t, test_time_subtract(t2, t1));
+    
+    printf("1. Partial chunks: total read time is %lf; number of bytes being read from file is %lu\n", test_time_to_double(t), nbytes_global);
+    
+    status = H5Dclose (dataset);
+    status = H5Sclose (filespace);
+    status = H5Sclose (memspace);
+    status = H5Pclose (dapl);
+}
+
+/*---------------------------------------------------------------------------
+ *      Check the performance of chunk cache when the number of cache slots
+ *      is smaller than the number of chunks along the fastest-growing
+ *      dimension of the dataset.
+ */
+static void check_hash_value_perf(hid_t file)
+{
+    hid_t        dataset;
+    hid_t        filespace;
+    hid_t        memspace;
+    hid_t        dapl;
+    
+    herr_t       status;
+    int          rdata[DSET2_DIM1];   /* data for reading */
+    int          i;
+    
+    hsize_t      column_rank = 1;
+    hsize_t      column_dim[1] = {DSET2_DIM1};
+    hsize_t      start[RANK] = {0, 0};
+    hsize_t      count[RANK] = {DSET2_DIM1, 1};
+    test_time_t t = {0, 0}, t1 = {0, 0}, t2 = {0, 0};
+    
+    dapl = H5Pcreate(H5P_DATASET_ACCESS);
+    status = H5Pset_chunk_cache (dapl, RDCC_NSLOTS, RDCC_NBYTES, RDCC_W0);
+    
+    dataset = H5Dopen2 (file, DSET2_NAME, dapl);
+    
+    memspace = H5Screate_simple(column_rank, column_dim, NULL);
+    filespace = H5Dget_space(dataset);
+    
+    nbytes_global = 0;
+    
+    test_time_get_current(&t1);
+    
+    /* Read the data column by column */
+    for(i = 0; i < DSET2_DIM2; i++) {
+        start[1] = i;
+        status = H5Sselect_hyperslab(filespace, H5S_SELECT_SET,
+                                     start, NULL, count, NULL);
+        
+        status = H5Dread (dataset, H5T_NATIVE_INT, memspace, filespace,
+                          H5P_DEFAULT, rdata);
+    }
+    
+    test_time_get_current(&t2);
+    t = test_time_add(t, test_time_subtract(t2, t1));
+    
+    printf("2. Hash value: total read time is %lf; number of bytes being read from file is %lu\n", test_time_to_double(t), nbytes_global);
+    
+    status = H5Dclose (dataset);
+    status = H5Sclose (filespace);
+    status = H5Sclose (memspace);
+    status = H5Pclose (dapl);
+}
+
+/*-------------------------------------------------------------------------------------
+ *  Purpose: check the performance of chunk cache in these two cases (HDFFV-10601):
+ *          1. partial chunks exist along any dimension.
+ *          2. number of slots in chunk cache is smaller than the number of chunks
+ *             in the fastest-growing dimension.
+ *-------------------------------------------------------------------------------------*/
+int
+main (void)
+{
+    hid_t        file;                          /* handles */
+
+    /* Create a new file. If file exists its contents will be overwritten. */
+    file = H5Fcreate (FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+    create_dset1(file);
+    create_dset2(file);
+    
+    H5Fclose (file);
+
+    /* Re-open the file for testing performance. */
+    file = H5Fopen (FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
+
+    check_partial_chunks_perf(file);
+    check_hash_value_perf(file);
+    
+    H5Fclose (file);
+    
+    return 0;
+}