[dpdk-dev] [PATCH] app/test: fix memory needs after RTE_MAX_LCORE was increased to 128

[De Lara Guarch, Pablo]

> -----Original Message-----
> From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com]
> Sent: Thursday, December 04, 2014 1:21 PM
> To: De Lara Guarch, Pablo
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] app/test: fix memory needs after
> RTE_MAX_LCORE was increased to 128
> 
> > Since commit b91c67e5a693211862aa7dc3b78630b4e856c2af,
> > maximum number of cores is 128, which has increase
> > the total memory necessary for a rte_mempool structure,
> > as the per-lcore local cache has been doubled in size.
> > Therefore, eal_flags unit test was broken since it needed
> > to use more hugepages.
> >
> > Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
> 
> When I check it in a VM, I still have a memory issue in
> test_invalid_vdev_flag().
> Do you have an idea of the problem?

Sorry I did not have a VM by that time. Now I do :)
Apparently it needs more memory, as first thing DPDK does is 
reserving space in rte_malloc heap, which size is bigger in the VM.
By changing the memory needed to 18M, we can fix the unit test.
I am still not sure why within a VM we need more memory, though.

Thanks,
Pablo
> 
> --
> Thomas