From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 23B2AA0096 for ; Wed, 10 Apr 2019 10:14:06 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E25844D3A; Wed, 10 Apr 2019 10:14:04 +0200 (CEST) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id E505C2B95 for ; Wed, 10 Apr 2019 10:14:02 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Apr 2019 01:14:01 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,332,1549958400"; d="scan'208";a="159845693" Received: from irsmsx109.ger.corp.intel.com ([163.33.3.23]) by fmsmga002.fm.intel.com with ESMTP; 10 Apr 2019 01:13:58 -0700 Received: from irsmsx103.ger.corp.intel.com ([169.254.3.30]) by IRSMSX109.ger.corp.intel.com ([169.254.13.189]) with mapi id 14.03.0415.000; Wed, 10 Apr 2019 09:13:58 +0100 From: "Richardson, Bruce" To: "Ananyev, Konstantin" , Aaron Conole CC: "dev@dpdk.org" , Jerin Jacob , Gavin Hu , Michael Santana Thread-Topic: [PATCH 3/3] acl: adjust the tests Thread-Index: AQHU7tRnFzUpsbeTZEqJJqSVVkAp/6Yz7P2AgAARNICAAQ58kA== Date: Wed, 10 Apr 2019 08:13:57 +0000 Message-ID: <59AF69C657FD0841A61C55336867B5B072787EC0@IRSMSX103.ger.corp.intel.com> References: <20190408182420.4398-1-aconole@redhat.com> <20190408182420.4398-4-aconole@redhat.com> <2601191342CEEE43887BDE71AB9772580148A94A44@irsmsx105.ger.corp.intel.com> <2601191342CEEE43887BDE71AB9772580148A94D87@irsmsx105.ger.corp.intel.com> <2601191342CEEE43887BDE71AB9772580148A94DA8@irsmsx105.ger.corp.intel.com> In-Reply-To: <2601191342CEEE43887BDE71AB9772580148A94DA8@irsmsx105.ger.corp.intel.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiNTVlMDgyNjUtZmRlZC00NTcwLWIyYWQtZjQxYzc0NjI4OTczIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiXC9uVXlYZldcL2EzK1dVS28rZjdhZ2ZIWW5FOFJGREN0clVGbk5vZ3BBNGtZY1UyUEpmS1ZWbitIdlNOam05azRcLyJ9 x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.600.7 dlp-reaction: no-action x-originating-ip: [163.33.239.180] Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] [PATCH 3/3] acl: adjust the tests X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Message-ID: <20190410081357.daoNv32WBdKlbUjVcss9xpxqxovvZlNdld2kkmi5QDw@z> > -----Original Message----- > From: Ananyev, Konstantin > Sent: Tuesday, April 9, 2019 6:05 PM > To: Ananyev, Konstantin ; Aaron Conole > > Cc: dev@dpdk.org; Jerin Jacob ; Gavin Hu > ; Richardson, Bruce ; > Michael Santana > Subject: RE: [PATCH 3/3] acl: adjust the tests >=20 >=20 >=20 > > > > > > Hi Aaron, > > > > > > > >> > > > >> This makes the tests pass, and also ensures that on platforms > > > >> where the testing is supported, we can properly test the > > > >> implementation specific code. One edge case is when we run on > > > >> x86_64 systems that don't support AVX2, but where the compiler > > > >> can generate such instructions. That could be an enhancement in > > > >> the future, but for now at least the tests will pass. > > > >> > > > >> Signed-off-by: Aaron Conole > > > >> --- > > > >> app/test/test_acl.c | 62 +++++++++++++---------------= - > ---- > > > >> lib/librte_acl/Makefile | 1 + > > > >> lib/librte_acl/acl_run_notsup.c | 46 ++++++++++++++++++++++++ > > > >> lib/librte_acl/meson.build | 4 +-- > > > >> 4 files changed, 73 insertions(+), 40 deletions(-) create mode > > > >> 100644 lib/librte_acl/acl_run_notsup.c > > > >> > > > >> diff --git a/app/test/test_acl.c b/app/test/test_acl.c index > > > >> b1f75d1bc..c44faa251 100644 > > > >> --- a/app/test/test_acl.c > > > >> +++ b/app/test/test_acl.c > > > >> @@ -408,6 +408,9 @@ test_classify(void) > > > >> return -1; > > > >> } > > > >> > > > >> + /* Always use the scalar testing for now. */ > > > >> + rte_acl_set_ctx_classify(acx, RTE_ACL_CLASSIFY_SCALAR); > > > >> + > > > >> ret =3D 0; > > > >> for (i =3D 0; i !=3D TEST_CLASSIFY_ITER; i++) { > > > >> > > > >> @@ -547,6 +550,7 @@ test_build_ports_range(void) > > > >> for (i =3D 0; i !=3D RTE_DIM(test_data); i++) > > > >> data[i] =3D (uint8_t *)&test_data[i]; > > > >> > > > >> + rte_acl_set_ctx_classify(acx, RTE_ACL_CLASSIFY_SCALAR); > > > >> for (i =3D 0; i !=3D RTE_DIM(test_rules); i++) { > > > >> rte_acl_reset(acx); > > > >> ret =3D test_classify_buid(acx, test_rules, i + 1); @@ - > 911,6 > > > >> +915,8 @@ test_convert_rules(const char *desc, > > > >> return -1; > > > >> } > > > >> > > > >> + rte_acl_set_ctx_classify(acx, RTE_ACL_CLASSIFY_SCALAR); > > > >> + > > > > > > > > As I understand here and above, on x86 you replaced default algo > > > > (SSE, AVX2) with scalar one, right? > > > > That looks like reduction of test coverage for x86. > > > > > > In one way, you're right. However, the tests weren't testing what > > > they purported anyway. > > > > Could you explain a bit more here? > > What I am seeing: tests were running bot sse(or avx2) and scalar > classify() method. > > Now they always running scalar only. > > To me it definitely looks like reduction in coverage. > > > > > Actually, it's just a shift I think (previously, it would have > > > tested the AVX2 but I don't see AVX2 having a fallback into the SSE > > > code - unlike the SSE code falling back into scalar). > > > > Not sure I understand you here. > > What fallback for AVX2 you expect that you think is missing? > > > > > > > > The tests were failing for a number of reasons when built with > > > meson, > > > > Ok, but with legacy build system (make) on x86 all tests passes, right? > > So the problem is in new build system, not in the test itself. > > Why we should compromise our test coverage to make it work with new > > tools? > > That just hides the problem without fixing it. > > Instead I think the build system needs to be fixed. > > Looking at it a bit closely, for .so meson+ninja generates code with > > correct version of the function: > > > > nm x86_64-native-linuxapp-gcc-meson/lib/librte_acl.so.2 | grep > > acl_classify_sse > > 000000000000fa50 t rte_acl_classify_sse > > > > So for 'meson -Ddefault_library=3Dshared' > > acl_autotest passes without the problem. > > > > Though for static lib we have both: > > nm x86_64-native-linuxapp-gcc-meson/lib/librte_acl.a | grep > > acl_classify_sse > > 0000000000000000 W rte_acl_classify_sse > > 0000000000004880 T rte_acl_classify_sse > > > > And then linker pickups the wrong one: > > nm x86_64-native-linuxapp-gcc-meson/app/test/dpdk-test | grep > > acl_classify_sse > > 00000000005f6100 W rte_acl_classify_sse > > > > While for make: > > $ nm x86_64-native-linuxapp-gcc-aesmb/lib/librte_acl.a | grep > > acl_classify_sse > > 0000000000000000 W rte_acl_classify_sse > > 0000000000004880 T rte_acl_classify_sse $ nm > > x86_64-native-linuxapp-gcc-aesmb/app/test | grep acl_classify_sse > > 0000000000240440 T rte_acl_classify_sse > > > > Linker pickups the right one. >=20 > And the changes below make linker to pick-up the proper version of the > function and make acl_autotest to pass for static build too. >=20 > diff --git a/app/test/meson.build b/app/test/meson.build index > 867cc5863..4364be932 100644 > --- a/app/test/meson.build > +++ b/app/test/meson.build > @@ -328,6 +328,7 @@ test_dep_objs +=3D cc.find_library('execinfo', requir= ed: > false) link_libs =3D [] if get_option('default_library') =3D=3D 'static= ' > link_libs =3D dpdk_drivers > + link_libs +=3D dpdk_static_libraries > endif >=20 > if get_option('tests') > diff --git a/meson.build b/meson.build > index a96486597..df1e1c41c 100644 > --- a/meson.build > +++ b/meson.build > @@ -62,6 +62,7 @@ configure_file(output: build_cfg, # for static builds, > include the drivers as libs and we need to "whole-archive" > # them. > dpdk_drivers =3D ['-Wl,--whole-archive'] + dpdk_drivers + ['-Wl,--no-who= le- > archive'] > +dpdk_static_libraries =3D ['-Wl,--whole-archive'] + dpdk_static_librarie= s > ++ ['-Wl,--no-whole-archive'] >=20 > Not saying that's the proper patch, but just to prove that linking > librte_acl.a with '--whole-archive' does fix the problem. > Bruce, could you point is the best way to fix things here (my meson > knowledge is very limited)? > Do we need extra container here as 'whole_archive_static_libraries[]' or > so? > Thanks > Konstantin >=20 I'll look into this. I'd really rather avoid having to have all DPDK librar= ies linked with link-whole, but if not, we'll need some sort of similar solutio= n. Regards, /Bruce