Commit 177ab97b authored by Ziye Yang's avatar Ziye Yang Committed by Jim Harris
Browse files

fio_plugin: Reset the cpu core affinity after spdk_env_init 



The reaon is that rte_eal_init called in spdk_env_init binds
the master thread on master core, we need to restore the
affinity.

Change-Id: I4eb2d36b74404c1af6d242c4fd5c403bd3d5036c
Signed-off-by: default avatarZiye Yang <ziye.yang@intel.com>
parent 013471a1

examples/nvme/fio_plugin/fio_plugin.c

+18 −0
Original line number Diff line number Diff line
@@ -179,6 +179,23 @@ attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid, 
	fio_ctrlr->ns_list = fio_ns;

}



static void

cpu_core_unaffinitized(void)

{

	cpu_set_t mask;

	int i;

	int num = sysconf(_SC_NPROCESSORS_CONF);



	CPU_ZERO(&mask);

	for (i = 0; i < num; i++) {

		CPU_SET(i, &mask);

	}



	if (pthread_setaffinity_np(pthread_self(), sizeof(mask), &mask) < 0) {

		SPDK_ERRLOG("set thread affinity failed\n");

	}

}



/* Called once at initialization. This is responsible for gathering the size of

 * each "file", which in our case are in the form

 * 'key=value [key=value] ... ns=value'
@@ -216,6 +233,7 @@ static int spdk_fio_setup(struct thread_data *td) 
		opts.dpdk_mem_size = 512;

		spdk_env_init(&opts);

		spdk_env_initialized = true;

		cpu_core_unaffinitized();

	}



	for_each_file(td, f, i) {