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fio_plugin: Fix the performance issue on testing multiple remote nvme subsystem

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The reason is that we create duplicated qpair on same subsystem many times,
thus the performance is influenced. And this patch can fix this issue.

Change-Id: I075b028b15e0d34857a89510710642f2d9520235
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-on: https://review.gerrithub.io/375782
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Ziye Yang 2017-08-26 04:12:52 +08:00 committed by Jim Harris
parent 9e8853953a
commit a99dd7751f
1 changed files with 5 additions and 1 deletions
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6
examples/nvme/fio_plugin/fio_plugin.c
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@ -74,6 +74,7 @@ struct spdk_fio_qpair {
struct spdk_nvme_qpair *qpair;
struct spdk_nvme_ns *ns;
struct spdk_fio_qpair *next;
struct spdk_fio_ctrlr *fio_ctrlr;
};
struct spdk_fio_thread {
@ -156,7 +157,9 @@ attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid,
fio_qpair = fio_thread->fio_qpair;
while (fio_qpair != NULL) {
if (fio_qpair->f == f) {
if ((fio_qpair->f == f) ||
((spdk_nvme_transport_id_compare(trid, &fio_qpair->fio_ctrlr->tr_id) == 0) &&
(spdk_nvme_ns_get_id(fio_qpair->ns) == ns_id))) {
return;
}
fio_qpair = fio_qpair->next;
@ -171,6 +174,7 @@ attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid,
fio_qpair->qpair = spdk_nvme_ctrlr_alloc_io_qpair(fio_ctrlr->ctrlr, NULL, 0);
fio_qpair->ns = ns;
fio_qpair->f = f;
fio_qpair->fio_ctrlr = fio_ctrlr;
fio_qpair->next = fio_thread->fio_qpair;
fio_thread->fio_qpair = fio_qpair;