Hi, thanks for the patch!
Reply inlined:
>-----Original Message-----
>From: Dharmik Thakkar [mailto:dharmik.thak...@arm.com]
>Sent: Wednesday, May 8, 2019 9:51 AM
>To: Wang, Yipeng1 <yipeng1.w...@intel.com>; Gobriel, Sameh
><sameh.gobr...@intel.com>; Richardson, Bruce
><bruce.richard...@intel.com>; De Lara Guarch, Pablo
><pablo.de.lara.gua...@intel.com>
>Cc: dev@dpdk.org; honnappa.nagaraha...@arm.com; zhongdahulin...@163.com;
>Dharmik Thakkar <dharmik.thak...@arm.com>
>Subject: [PATCH 2/2] test/hash: add test for 'free key with position'
>
>This patch adds a unit test for rte_hash_free_key_with_position().
>
>Suggested-by: Linfan <zhongdahulin...@163.com>
>Signed-off-by: Dharmik Thakkar <dharmik.thak...@arm.com>
>---
> app/test/test_hash.c | 83 ++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 83 insertions(+)
>
>diff --git a/app/test/test_hash.c b/app/test/test_hash.c
>index 390fbef87f42..a6949f2579a2 100644
>--- a/app/test/test_hash.c
>+++ b/app/test/test_hash.c
>@@ -481,6 +481,87 @@ static int test_add_update_delete_free(void)
> return 0;
> }
>
>+/*
>+ * Sequence of operations for a single key with 'rw concurrency lock free'
>set:
>+ * - add
>+ * - delete: hit
>+ * - free: hit
>+ * Repeat the test case when 'multi writer add' is enabled.
>+ * - add
>+ * - delete: hit
>+ * - free: hit
>+ */
>+static int test_add_delete_free_lf(void)
>+{
>+#define LCORE_CACHE_SIZE 64
[Wang, Yipeng] We could say this should match the #define LCORE_CACHE_SIZE
value in rte_cuckoo_hash.h
I also found the #define BUCKET_ENTRIES 4 in this file without comment. I think
it should match #define RTE_HASH_BUCKET_ENTRIES
Which is supposed to be 8? If so please add a commit for bug fix.
>+ struct rte_hash *handle;
>+ hash_sig_t hash_value;
>+ int pos, expectedPos, delPos;
>+ uint8_t extra_flag;
>+ uint32_t i, ip_src;
>+
>+ extra_flag = ut_params.extra_flag;
>+ ut_params.extra_flag = RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF;
>+ handle = rte_hash_create(&ut_params);
>+ RETURN_IF_ERROR(handle == NULL, "hash creation failed");
>+ ut_params.extra_flag = extra_flag;
>+
[Wang, Yipeng] Here we could say:" The number of iterations is at least the
same as the number of slots rte_hash allocates internally. This is to
Reveal potential issues of not freeing keys successfully."
Same for the other loop.
>+ for (i = 0; i < ut_params.entries + 1; i++) {
>+ hash_value = rte_hash_hash(handle, &keys[0]);
>+ pos = rte_hash_add_key_with_hash(handle, &keys[0], hash_value);
>+ print_key_info("Add", &keys[0], pos);
>+ RETURN_IF_ERROR(pos < 0, "failed to add key (pos=%d)", pos);
..
Thanks
Yipeng
