On Tue, May 09, 2017 at 01:08:30PM +0800, Junchang Wang wrote:
> The maximum size of integer variable on 64bit machines is 2^31. Suppose the
> writer takes 5 nanosecond to increase the counter by one, the result wraps
> around in about 10 seconds.
>
> Signed-off-by: Junchang Wang <junchangwang@xxxxxxxxx>
Good catch, queued!
Thanx, Paul
> ---
> CodeSamples/count/count_stat_eventual.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/CodeSamples/count/count_stat_eventual.c b/CodeSamples/count/count_stat_eventual.c
> index 75a0ca9..059ab8b 100644
> --- a/CodeSamples/count/count_stat_eventual.c
> +++ b/CodeSamples/count/count_stat_eventual.c
> @@ -38,7 +38,7 @@ unsigned long read_count(void)
> void *eventual(void *arg)
> {
> int t;
> - int sum;
> + unsigned long sum;
>
> while (stopflag < 3) {
> sum = 0;
> --
> 2.7.4
>
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