Hi, I am running an application over dpdk ver 16.04. My application massively inserting and deleting from a hash table using a key that can be very similar for many instances. I noticed that in some cases I am unable to find an entry while I am certain it was inserted successfully. I wrote a test to try and reproduce the problem and I have managed to recreate the problem. Attached is a c file containing the test which recreates the problem. The key and hash function/hash size which I used in the test are identical to what I use in my application. attached is also a file containing the printouts of the test and indication to 2 of the problems I encountered. Are these known issues? is there a fix for that?
Thanks, Shirley
test iteration 0: entry_misses 0, add_entry_fail 0, entry_hits 30000, entry_rm 78000, entry_add 78000 test iteration 1: entry_misses 0, add_entry_fail 0, entry_hits 30000, entry_rm 78000, entry_add 78000 ALREADY EXISTS (VT 27, SID 0, SSN 6606, UBIT 0) (DST 0xB5ABE6D5/64703, SRC 0xD5445A3E/7183) SIG 3111868123 NOT FOUND (VT 27, SID 0, SSN 6606, UBIT 0) (DST 0xB5ABE6D5/64703, SRC 0xD5445A3E/7183) test iteration 2: entry_misses 1, add_entry_fail 0, entry_hits 30001, entry_rm 77999, entry_add 77999 test iteration 3: entry_misses 0, add_entry_fail 0, entry_hits 30000, entry_rm 78000, entry_add 78000 test iteration 4: entry_misses 0, add_entry_fail 0, entry_hits 30000, entry_rm 78000, entry_add 78000 ADD (VT 56, SID 0, SSN 4444, UBIT 1) (DST 0xB5ABE6D5/64703, SRC 0xD5445A3E/7183) SIG 777357509 NOT FOUND (VT 56, SID 0, SSN 4444, UBIT 1) (DST 0xB5ABE6D5/64703, SRC 0xD5445A3E/7183) test iteration 5: entry_misses 1, add_entry_fail 0, entry_hits 30000, entry_rm 77999, entry_add 78000 test iteration 6: entry_misses 0, add_entry_fail 0, entry_hits 30000, entry_rm 78000, entry_add 78000 test iteration 7: entry_misses 0, add_entry_fail 0, entry_hits 30000, entry_rm 78000, entry_add 78000 test iteration 8: entry_misses 0, add_entry_fail 0, entry_hits 30000, entry_rm 78000, entry_add 78000 test iteration 9: entry_misses 0, add_entry_fail 0, entry_hits 30000, entry_rm 78000, entry_add 78000 ============================================================================================================ test iteration 2: (*) receiving an already exist message for the given key before inserting to the table. ALREADY EXISTS (VT 27, SID 0, SSN 6606, UBIT 0) (DST 0xB5ABE6D5/64703, SRC 0xD5445A3E/7183) SIG 3111868123 (*) when later performing lookup I get a not found message.. NOT FOUND (VT 27, SID 0, SSN 6606, UBIT 0) (DST 0xB5ABE6D5/64703, SRC 0xD5445A3E/7183) test iteration 5: (*) entry insterted to the table and was not found when performing lookup: ADD (VT 56, SID 0, SSN 4444, UBIT 1) (DST 0xB5ABE6D5/64703, SRC 0xD5445A3E/7183) SIG 777357509 NOT FOUND (VT 56, SID 0, SSN 4444, UBIT 1) (DST 0xB5ABE6D5/64703, SRC 0xD5445A3E/7183)
