9e6b36c34c
Following [1], testpmd memory consumption has skyrocketted.
The rte_port structure has gotten quite fat.
struct rte_port {
[...]
struct rte_eth_rxconf rx_conf[65536]; /* 266280 3145728 */
/* --- cacheline 53312 boundary (3411968 bytes) was 40 bytes ago --- */
struct rte_eth_txconf tx_conf[65536]; /* 3412008 3670016 */
/* --- cacheline 110656 boundary (7081984 bytes) was 40 bytes ago --- */
[...]
/* size: 8654936, cachelines: 135234, members: 31 */
[...]
testpmd handles RTE_MAX_ETHPORTS ports (32 by default) which means that it
needs ~256MB just for this internal representation.
The reason is that a testpmd rte_port (the name is quite confusing, as
it is a local type) maintains configurations for all queues of a port.
But where you would expect testpmd to use RTE_MAX_QUEUES_PER_PORT as the
maximum queue count, the rte_port uses MAX_QUEUE_ID set to 64k.
Prefer the ethdev maximum value.
After this patch:
struct rte_port {
[...]
struct rte_eth_rxconf rx_conf[1025]; /* 8240 49200 */
/* --- cacheline 897 boundary (57408 bytes) was 32 bytes ago --- */
struct rte_eth_txconf tx_conf[1025]; /* 57440 57400 */
/* --- cacheline 1794 boundary (114816 bytes) was 24 bytes ago --- */
[...]
/* size: 139488, cachelines: 2180, members: 31 */
[...]
With this, we can ask for less memory in test-null.sh.
[1]: https://git.dpdk.org/dpdk/commit/?id=436b3a6b6e62
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
33 lines
992 B
Bash
Executable File
33 lines
992 B
Bash
Executable File
#! /bin/sh -e
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# SPDX-License-Identifier: BSD-3-Clause
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# Copyright 2015 6WIND S.A.
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# Copyright 2019 Mellanox Technologies, Ltd
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# Run a quick testpmd forwarding with null PMD without hugepage
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build=${1:-build} # first argument can be the build directory
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testpmd=$1 # or first argument can be the testpmd path
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coremask=${2:-3} # default using cores 0 and 1
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eal_options=$3
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testpmd_options=$4
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[ -f "$testpmd" ] && build=$(dirname $(dirname $testpmd))
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[ -f "$testpmd" ] || testpmd=$build/app/dpdk-testpmd
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[ -f "$testpmd" ] || testpmd=$build/app/testpmd
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if [ ! -f "$testpmd" ] ; then
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echo 'ERROR: testpmd cannot be found' >&2
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exit 1
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fi
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if ldd $testpmd | grep -q librte_ ; then
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export LD_LIBRARY_PATH=$build/lib:$LD_LIBRARY_PATH
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libs='-d librte_mempool_ring.so -d librte_pmd_null.so'
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else
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libs=
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fi
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(sleep 1 && echo stop) |
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$testpmd -c $coremask --no-huge -m 20 \
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$libs -w 0:0.0 --vdev net_null1 --vdev net_null2 $eal_options -- \
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--no-mlockall --total-num-mbufs=2048 $testpmd_options -ia
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