[test] decrease the number of blobs in fs backend benchmarks

tests/benchmarks/test_blobs_fs_backend.py

@@ -44,10 +44,10 @@ def create_write_test(amount, size):
     return test
 
 
-test_blobs_fs_backend_write_10_10000k = create_write_test(10, 10000 * 1000)
-test_blobs_fs_backend_write_100_1000k = create_write_test(100, 1000 * 1000)
-test_blobs_fs_backend_write_1000_100k = create_write_test(1000, 100 * 1000)
-test_blobs_fs_backend_write_10000_10k = create_write_test(10000, 10 * 1000)
+test_blobs_fs_backend_write_1_10000k = create_write_test(1, 10000 * 1000)
+test_blobs_fs_backend_write_10_1000k = create_write_test(10, 1000 * 1000)
+test_blobs_fs_backend_write_100_100k = create_write_test(100, 100 * 1000)
+test_blobs_fs_backend_write_1000_10k = create_write_test(1000, 10 * 1000)
 
 
 class DevNull(object):
@@ -101,7 +101,7 @@ def create_read_test(amount, size):
     return test
 
 
-test_blobs_fs_backend_read_10_10000k = create_read_test(10, 10000 * 1000)
-test_blobs_fs_backend_read_100_1000k = create_read_test(100, 1000 * 1000)
-test_blobs_fs_backend_read_1000_100k = create_read_test(1000, 100 * 1000)
-test_blobs_fs_backend_read_10000_10k = create_read_test(10000, 10 * 1000)
+test_blobs_fs_backend_read_1_10000k = create_read_test(1, 10000 * 1000)
+test_blobs_fs_backend_read_10_1000k = create_read_test(10, 1000 * 1000)
+test_blobs_fs_backend_read_100_100k = create_read_test(100, 100 * 1000)
+test_blobs_fs_backend_read_1000_10k = create_read_test(1000, 10 * 1000)