On 01/11/2018 01:10 PM, Martin KaFai Lau wrote:
> On Wed, Jan 10, 2018 at 10:40:11AM -0800, John Fastabend wrote:
>> Add a base test that does not use BPF hooks to test baseline case.
>>
>> Signed-off-by: John Fastabend <john.fastab...@gmail.com>
>> ---
>> samples/sockmap/sockmap_user.c | 26 +++++++++++++++++++++-----
>> 1 file changed, 21 insertions(+), 5 deletions(-)
>>
>> diff --git a/samples/sockmap/sockmap_user.c b/samples/sockmap/sockmap_user.c
>> index 812fc7e..eb19d14 100644
>> --- a/samples/sockmap/sockmap_user.c
>> +++ b/samples/sockmap/sockmap_user.c
>> @@ -285,18 +285,24 @@ static int msg_loop(int fd, int iov_count, int
>> iov_length, int cnt,
>>
>> static float giga = 1000000000;
>>
>> -static int sendmsg_test(int iov_count, int iov_buf, int cnt, int verbose)
>> +static int sendmsg_test(int iov_count, int iov_buf, int cnt,
>> + int verbose, bool base)
>> {
>> - int txpid, rxpid, err = 0;
>> + float sent_Bps = 0, recvd_Bps = 0;
>> + int rx_fd, txpid, rxpid, err = 0;
>> struct msg_stats s = {0};
>> int status;
>> - float sent_Bps = 0, recvd_Bps = 0;
>>
>> errno = 0;
>>
>> + if (base)
>> + rx_fd = p1;
>> + else
>> + rx_fd = p2;
>> +
>> rxpid = fork();
>> if (rxpid == 0) {
>> - err = msg_loop(p2, iov_count, iov_buf, cnt, &s, false);
>> + err = msg_loop(rx_fd, iov_count, iov_buf, cnt, &s, false);
> I am likely missing something. After receiving from p1, should the
> base-line case also send to c2 which then will be received by p2?
>
Well I wanted a test to check socket to socket rates and see what
max throughput we could get with this simple tool. It provides a
good reference point for any other 'perf' data, throughput numbers,
etc. The numbers I see here, probably as expected, are very close
to what I get with iperf tests.
Adding another test base_bounce or base_proxy or something along
those lines might be another test we can add. I think you were
expecting this to be a 1:1 comparison with the sendmsg BPF test
but its not. Probably can add it though.
Thanks,
John
