Re: [RFC v2] Add mempressure cgroup

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On Mon, Dec 10, 2012 at 01:23:09PM +0100, Bartlomiej Zolnierkiewicz wrote:
> On Monday 10 December 2012 10:58:38 Anton Vorontsov wrote:
> 
> > +static void consume_memory(void)
> > +{
> > +	unsigned int i = 0;
> > +	unsigned int j = 0;
> > +
> > +	puts("consuming memory...");
> > +
> > +	while (1) {
> > +		pthread_mutex_lock(&locks[i]);
> > +		if (!chunks[i]) {
> > +			chunks[i] = malloc(CHUNK_SIZE);
> > +			pabort(!chunks[i], 0, "chunks alloc failed");
> > +			memset(chunks[i], 0, CHUNK_SIZE);
> > +			j++;
> > +		}
> > +		pthread_mutex_unlock(&locks[i]);
> > +
> > +		if (j >= num_chunks / 10) {
> > +			add_reclaimable(num_chunks / 10);
> 
> Shouldn't it use j instead of num_chunks / 10 here?

Um.. They should be equal. Or am I missing the point?

> > +			printf("added %d reclaimable chunks\n", j);
> > +			j = 0;

Here, we reset it.

> > +		}
> > +
> > +		i = (i + 1) % num_chunks;
> > +	}
> > +}

Thanks!
Anton.

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