example/perf: add more clear information on large queue depth
Change-Id: I7e9166834c869077a66467b06b51084e1a945a99 Signed-off-by: GangCao <gang.cao@intel.com> Reviewed-on: https://review.gerrithub.io/386198 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
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@ -218,9 +218,10 @@ register_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns *ns)
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*/
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entries = (g_io_size_bytes - 1) / max_xfer_size + 2;
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if ((g_queue_depth * entries) > opts.io_queue_size) {
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printf("WARNING: controller IO queue size %u less than required\n",
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printf("controller IO queue size %u less than required\n",
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opts.io_queue_size);
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printf("You can try with smaller IO size or queue depth\n");
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printf("configure an IO queue depth and IO size such that "
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"the product is less than or equal to %u\n", opts.io_queue_size);
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g_warn = true;
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return;
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}
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