Re: [Qemu-trivial] [PATCH 1/2] rdma: remove check on time_spent when calculating mbs

[Wei Yang <richard.weiyang@gmail.com>]

On Sat, Jan 30, 2016 at 12:45:27PM +0300, Michael Tokarev wrote:
>24.01.2016 17:09, Wei Yang wrote:
>> Within the if statement, time_spent is assured to be non-zero.
>> 
>> This patch just removes the check on time_spent when calculating mbs.
>
>The if statement is this one:
>
>        if (current_time >= initial_time + BUFFER_DELAY) {
>
>Note that we use time_spent as a divisor to calculate
>bandwidth too.
>
>This is indeed a trivial patch, I'm applying it to -trivial,
>but please the next time post it to qemu-devel (the main
>mailinglist), and Cc qemu-trivial if it is trivial.
>

To Amit and Michael,

Yep, thanks. I thought these two are too trivial to post to qemu-devel :)

Will do this next time.

>Thanks!
>
>/mjt
>
>> Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
>> ---
>>  migration/migration.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>> 
>> diff --git a/migration/migration.c b/migration/migration.c
>> index c842499..40b87f2 100644
>> --- a/migration/migration.c
>> +++ b/migration/migration.c
>> @@ -1677,8 +1677,8 @@ static void *migration_thread(void *opaque)
>>              double bandwidth = (double)transferred_bytes / time_spent;
>>              max_size = bandwidth * migrate_max_downtime() / 1000000;
>>  
>> -            s->mbps = time_spent ? (((double) transferred_bytes * 8.0) /
>> -                    ((double) time_spent / 1000.0)) / 1000.0 / 1000.0 : -1;
>> +            s->mbps = (((double) transferred_bytes * 8.0) /
>> +                    ((double) time_spent / 1000.0)) / 1000.0 / 1000.0;
>>  
>>              trace_migrate_transferred(transferred_bytes, time_spent,
>>                                        bandwidth, max_size);
>> 

-- 
Wei Yang
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