[dts] [PATCH] tests: clean and reset the hugepages to fix cryptodev perf drop

[Zhao, XinfengX]

Tested-by:  Zhao, Xinfeng<xinfengx.zhao at intel.com>

-----Original Message-----
From: Zhao, XinfengX 
Sent: Friday, May 15, 2020 2:38 AM
To: dts at dpdk.org
Cc: Zhao, XinfengX <xinfengx.zhao at intel.com>
Subject: [dts][PATCH] tests: clean and reset the hugepages to fix cryptodev perf drop

Signed-off-by: xinfengx <xinfengx.zhao at intel.com>
---
 tests/TestSuite_crypto_perf_cryptodev_perf.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tests/TestSuite_crypto_perf_cryptodev_perf.py b/tests/TestSuite_crypto_perf_cryptodev_perf.py
index defb7c2..910c81a 100644
--- a/tests/TestSuite_crypto_perf_cryptodev_perf.py
+++ b/tests/TestSuite_crypto_perf_cryptodev_perf.py
@@ -71,6 +71,11 @@ class PerfTestsCryptodev(TestCase):
         }
         self._app_path = "./x86_64-native-linuxapp-gcc/build/app/test-crypto-perf/dpdk-test-crypto-perf"
 
+        page_size = self.dut.send_expect("awk '/Hugepagesize/ {print $2}' /proc/meminfo", "# ")
+        if int(page_size) == 1024 * 1024:
+            self.dut.send_expect('echo 0 > /sys/kernel/mm/hugepages/hugepages-%skB/nr_hugepages' % (page_size), '# ', 5)
+            self.dut.send_expect('echo 16 > /sys/kernel/mm/hugepages/hugepages-%skB/nr_hugepages' % (page_size), '# ', 5)
+
         if not cc.is_build_skip(self):
             cc.build_dpdk_with_cryptodev(self)
 
-- 
2.17.1