diff --git a/src/clib/pio_nc4.c b/src/clib/pio_nc4.c
index 62ceb080c43..7d3ddf0898f 100644
--- a/src/clib/pio_nc4.c
+++ b/src/clib/pio_nc4.c
@@ -346,7 +346,7 @@ int PIOc_def_var_chunking(int ncid, int varid, int storage, const PIO_Offset *ch
  * @param varid the ID of the variable to set chunksizes for.
  * @param storagep pointer to int which will be set to either
  * NC_CONTIGUOUS or NC_CHUNKED.
- * @param chunksizep pointer to memory where chunksizes will be
+ * @param chunksizesp pointer to memory where chunksizes will be
  * set. There are the same number of chunksizes as there are
  * dimensions.
  * @return PIO_NOERR for success, otherwise an error code.
diff --git a/tests/cunit/test_perf2.c b/tests/cunit/test_perf2.c
index a00bb2e536c..b89f342ae9c 100644
--- a/tests/cunit/test_perf2.c
+++ b/tests/cunit/test_perf2.c
@@ -11,7 +11,7 @@
 #include <sys/time.h>
 
 /* The number of tasks this test should run on. */
-#define TARGET_NTASKS 16
+#define TARGET_NTASKS 1024
 
 /* The minimum number of tasks this test should run on. */
 #define MIN_NTASKS TARGET_NTASKS
@@ -20,7 +20,7 @@
 #define TEST_NAME "test_perf2"
 
 /* Number of processors that will do IO. */
-#define NUM_IO_PROCS 1
+#define NUM_IO_PROCS 128
 
 /* Number of computational components to create. */
 #define COMPONENT_COUNT 1
@@ -379,7 +379,7 @@ int main(int argc, char **argv)
         {
             /* Initialize the PIO IO system. This specifies how
              * many and which processors are involved in I/O. */
-            if ((ret = PIOc_Init_Intracomm(test_comm, TARGET_NTASKS, ioproc_stride,
+            if ((ret = PIOc_Init_Intracomm(test_comm, NUM_IO_PROCS, ioproc_stride,
                                            ioproc_start, rearranger[r], &iosysid)))
                 return ret;