From: Jianfeng Tan <jianfeng.tan@intel.com>
To: dev@dpdk.org
Cc: Jianfeng Tan <jianfeng.tan@intel.com>,
wenzhuo.lu@intel.com, jingjing.wu@intel.com
Subject: [dpdk-dev] [PATCH 3/4] app/testpmd: add option to avoid lock all memory
Date: Wed, 14 Feb 2018 04:01:31 +0000 [thread overview]
Message-ID: <1518580892-32656-4-git-send-email-jianfeng.tan@intel.com> (raw)
In-Reply-To: <1518580892-32656-1-git-send-email-jianfeng.tan@intel.com>
In some cases, we don't want to lock all memory.
Add an option --no-mlockall to avoid lock all memory.
Cc: wenzhuo.lu@intel.com
Cc: jingjing.wu@intel.com
Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
---
app/test-pmd/parameters.c | 5 ++++-
app/test-pmd/testpmd.c | 32 ++++++++++++++++++--------------
app/test-pmd/testpmd.h | 1 +
3 files changed, 23 insertions(+), 15 deletions(-)
diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c
index 97d22b8..5060a6c 100644
--- a/app/test-pmd/parameters.c
+++ b/app/test-pmd/parameters.c
@@ -186,6 +186,7 @@ usage(char* progname)
printf(" --flow-isolate-all: "
"requests flow API isolated mode on all ports at initialization time.\n");
printf(" --tx-offloads=0xXXXXXXXX: hexadecimal bitmask of TX queue offloads\n");
+ printf(" --no-mlockall: do not lock all memory\n");
}
#ifdef RTE_LIBRTE_CMDLINE
@@ -621,6 +622,7 @@ launch_args_parse(int argc, char** argv)
{ "print-event", 1, 0, 0 },
{ "mask-event", 1, 0, 0 },
{ "tx-offloads", 1, 0, 0 },
+ { "no-mlockall", 0, 0, 0 },
{ 0, 0, 0, 0 },
};
@@ -1102,7 +1104,8 @@ launch_args_parse(int argc, char** argv)
rte_exit(EXIT_FAILURE,
"invalid mask-event argument\n");
}
-
+ if (!strcmp(lgopts[opt_idx].name, "no-mlockall"))
+ no_mlockall = 1;
break;
case 'h':
usage(argv[0]);
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 4c0e258..59bdc85 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -294,6 +294,10 @@ uint32_t event_print_mask = (UINT32_C(1) << RTE_ETH_EVENT_UNKNOWN) |
(UINT32_C(1) << RTE_ETH_EVENT_INTR_RESET) |
(UINT32_C(1) << RTE_ETH_EVENT_MACSEC) |
(UINT32_C(1) << RTE_ETH_EVENT_INTR_RMV);
+/*
+ * Decide if all memory are locked for performance.
+ */
+int no_mlockall = 0;
/*
* NIC bypass mode configuration options.
@@ -2489,7 +2493,20 @@ main(int argc, char** argv)
rte_panic("Cannot register log type");
rte_log_set_level(testpmd_logtype, RTE_LOG_DEBUG);
- if (mlockall(MCL_CURRENT | MCL_FUTURE)) {
+ /* Bitrate/latency stats disabled by default */
+#ifdef RTE_LIBRTE_BITRATE
+ bitrate_enabled = 0;
+#endif
+#ifdef RTE_LIBRTE_LATENCY_STATS
+ latencystats_enabled = 0;
+#endif
+
+ argc -= diag;
+ argv += diag;
+ if (argc > 1)
+ launch_args_parse(argc, argv);
+
+ if (!no_mlockall && mlockall(MCL_CURRENT | MCL_FUTURE)) {
TESTPMD_LOG(NOTICE, "mlockall() failed with error \"%s\"\n",
strerror(errno));
}
@@ -2511,19 +2528,6 @@ main(int argc, char** argv)
rte_panic("Empty set of forwarding logical cores - check the "
"core mask supplied in the command parameters\n");
- /* Bitrate/latency stats disabled by default */
-#ifdef RTE_LIBRTE_BITRATE
- bitrate_enabled = 0;
-#endif
-#ifdef RTE_LIBRTE_LATENCY_STATS
- latencystats_enabled = 0;
-#endif
-
- argc -= diag;
- argv += diag;
- if (argc > 1)
- launch_args_parse(argc, argv);
-
if (tx_first && interactive)
rte_exit(EXIT_FAILURE, "--tx-first cannot be used on "
"interactive mode.\n");
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 153abea..028b873 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -319,6 +319,7 @@ extern volatile int test_done; /* stop packet forwarding when set to 1. */
extern uint8_t lsc_interrupt; /**< disabled by "--no-lsc-interrupt" parameter */
extern uint8_t rmv_interrupt; /**< disabled by "--no-rmv-interrupt" parameter */
extern uint32_t event_print_mask;
+extern int no_mlockall; /**< set by "--no-mlockall" parameter */
/**< set by "--print-event xxxx" and "--mask-event xxxx parameters */
#ifdef RTE_LIBRTE_IXGBE_BYPASS
--
2.7.4
next prev parent reply other threads:[~2018-02-14 3:59 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-14 4:01 [dpdk-dev] [PATCH 0/4] some fixes target for 18.05 Jianfeng Tan
2018-02-14 4:01 ` [dpdk-dev] [PATCH 1/4] vhost: remove unused macro Jianfeng Tan
2018-02-19 20:49 ` Maxime Coquelin
2018-02-21 7:32 ` Maxime Coquelin
2018-02-14 4:01 ` [dpdk-dev] [PATCH 2/4] vhost: avoid function call in data path Jianfeng Tan
2018-02-19 20:48 ` Maxime Coquelin
2018-02-21 7:32 ` Maxime Coquelin
2018-02-14 4:01 ` Jianfeng Tan [this message]
2018-02-14 6:40 ` [dpdk-dev] [PATCH 3/4] app/testpmd: add option to avoid lock all memory Wu, Jingjing
2018-02-24 3:26 ` [dpdk-dev] [PATCH v2] " Jianfeng Tan
2018-04-22 23:05 ` Thomas Monjalon
2018-05-03 11:32 ` Burakov, Anatoly
2018-02-14 4:01 ` [dpdk-dev] [PATCH 4/4] vhost: avoid populate guest memory Jianfeng Tan
2018-02-19 20:44 ` Maxime Coquelin
2018-02-22 2:42 ` Tan, Jianfeng
2018-02-22 8:25 ` Maxime Coquelin
2018-02-22 8:40 ` Tan, Jianfeng
2018-02-22 12:32 ` Maxime Coquelin
2018-02-23 3:17 ` Tan, Jianfeng
2018-03-28 6:56 ` [dpdk-dev] [PATCH v2] " Jianfeng Tan
2018-03-30 8:21 ` Maxime Coquelin
2018-03-30 8:34 ` Maxime Coquelin
2018-02-21 7:35 ` [dpdk-dev] [PATCH 0/4] some fixes target for 18.05 Maxime Coquelin
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