travis : added test durations

as a guide when doing test selection

.travis.yml

@@ -26,39 +26,39 @@ env:
 matrix:
   fast_finish: true
   include:
-    - name: arm64
+    - name: arm64    # ~2.5 mn
       os: linux
       arch: arm64
       script:
         - make check
 
-    - name: make test (complete)
+    - name: make test (complete)    # ~14mn
       script:
         # DEVNULLRIGHTS : will request sudo rights to test permissions on /dev/null
         - DEVNULLRIGHTS=test make test
 
-    - name: gcc-6 + gcc-7 compilation
+    - name: gcc-6 + gcc-7 compilation   # ~ 3mn
       script:
         - make gcc6install gcc7install
         - CC=gcc-6 CFLAGS=-Werror make -j all
         - make clean
         - CC=gcc-7 CFLAGS=-Werror make -j all
 
-    - name: gcc-8 + ASan + UBSan + Test Zstd
+    - name: gcc-8 + ASan + UBSan + Test Zstd   # ~6.5mn
       script:
         - make gcc8install
         - CC=gcc-8 CFLAGS="-Werror" make -j all
         - make clean
         - CC=gcc-8 make -j uasan-test-zstd </dev/null   # test when stdin is not a tty
 
-    - name: gcc-6 + ASan + UBSan + Test Zstd, 32bit mode
+    - name: gcc-6 + ASan + UBSan + Test Zstd, 32bit mode    # ~4mn
       script:
         - make gcc6install libc6install
         - CC=gcc-6 CFLAGS="-Werror -m32" make -j all32
         - make clean
         - CC=gcc-6 make -j uasan-test-zstd32   # note : can complain about pointer overflow
 
-    - name: Trusty (clang-3.8 + MSan + Test Zstd)
+    - name: clang-3.8 + MSan + Test Zstd    # ~3.5mn
       script:
         - make clang38install
         # External libraries must be turned off when using MSAN tests,
@@ -66,7 +66,7 @@ matrix:
         # so any data coming from these libraries is always considered "uninitialized"
         - CC=clang-3.8 make clean msan-test-zstd HAVE_ZLIB=0 HAVE_LZ4=0 HAVE_LZMA=0
 
-    - name: Trusty (Minimal Decompressor Macros)
+    - name: Minimal Decompressor Macros    # ~5mn
       script:
         - make clean
         - CFLAGS=-Werror make -j all MOREFLAGS="-Werror -DHUF_FORCE_DECOMPRESS_X1 -DZSTD_FORCE_DECOMPRESS_SEQUENCES_SHORT"
@@ -81,63 +81,63 @@ matrix:
         - make clean
         - make -j check MOREFLAGS="-Werror -DZSTD_NO_INLINE -DZSTD_STRIP_ERROR_STRINGS"
 
-    - name: cmake test
+    - name: cmake test    # ~2mn
       script:
         - make cmakebuild
 
-    - name: static analyzer scanbuild
+    - name: static analyzer scanbuild    # ~26mn
       script:
         - make staticAnalyze
 
-    - name: gcc-8 + ASan + UBSan + Fuzz Test
+    - name: gcc-8 + ASan + UBSan + Fuzz Test    # ~19mn
       script:
         - make gcc8install
         - CC=gcc-8 make clean uasan-fuzztest
 
-    - name: gcc-6 + ASan + UBSan + Fuzz Test 32bit
+    - name: gcc-6 + ASan + UBSan + Fuzz Test 32bit    # ~15.5mn
       script:
         - make gcc6install libc6install
         - CC=gcc-6 CFLAGS="-O2 -m32" make uasan-fuzztest   # can complain about pointer overflow
 
-    - name: clang-3.8 + MSan + Fuzz Test
+    - name: clang-3.8 + MSan + Fuzz Test     # ~14.5mn
       script:
         - make clang38install
         - CC=clang-3.8 make clean msan-fuzztest
 
-    - name: ASan + UBSan + MSan + Regression Test
+    - name: ASan + UBSan + MSan + Regression Test    # ~ 4.5mn
       script:
         - make -j uasanregressiontest
         - make clean
         - make -j msanregressiontest
 
-    - name: Valgrind + Fuzz Test Stack Mode
+    - name: Valgrind + Fuzz Test Stack Mode    # ~ 7mn
       script:
         - make valgrindinstall
         - make -C tests clean valgrindTest
         - make clean
         - make -C tests test-fuzzer-stackmode
 
-    - name: Qemu ARM emulation + Fuzz Test
+    - name: Qemu ARM emulation + Fuzz Test    # ~13.5mn
       script:
         - make arminstall
         - make armfuzz
 
-    - name: Xenial (AARCH64 + Fuzz Test)
+    - name: Xenial (AARCH64 + Fuzz Test)    # ~14mn
       dist: xenial
       script:
         - make arminstall
         - make aarch64fuzz
 
-    - name: PPC + Fuzz Test
+    - name: PPC + Fuzz Test    # ~13mn
       script:
         - make ppcinstall
         - make ppcfuzz
 
-    - name: Versions Compatibility Test
+    - name: Versions Compatibility Test   # 11.5mn
       script:
         - make -C tests versionsTest
 
-    # check release number
+    # check release number (release only)
     - name: Tag-Specific Test
       if: tag =~ ^v[0-9]\.[0-9]
       script:
@@ -145,20 +145,20 @@ matrix:
         - tests/checkTag "$TRAVIS_BRANCH"
 
     # tests for master branch and cron job only
-    - name: OS-X
+    - name: OS-X    # ~13mn
       if: branch = master
       os: osx
       script:
         - make test
 
-    - name: thread sanitizer
+    - name: thread sanitizer   # ~29mn
       if: branch = master
       script:
         - make clang38install
         - CC=clang-3.8 make tsan-test-zstream
         - CC=clang-3.8 make tsan-fuzztest
 
-    - name: C++ and gnu90 compatibility
+    - name: C++ and gnu90 compatibility   # ~2.5mn
       if: branch = master
       script:
         - make cxxtest
@@ -167,26 +167,26 @@ matrix:
         - make clean
         - make travis-install    # just ensures `make install` works
 
-    - name: c99 compatibility
+    - name: c99 compatibility    # ~1.5mn
       if: branch = master
       script:
         - make c99build
         - make -C tests test-zstd
 
-    - name: PPC64
+    - name: PPC64    # ~13mn
       if: branch = master
       script:
         - make ppcinstall
         - make ppc64fuzz
 
-    - name: zlib wrapper test
+    - name: zlib wrapper test    # ~7.5mn
       if: branch = master
       script:
         - make gpp6install valgrindinstall
         - make -C zlibWrapper test
         - make -C zlibWrapper valgrindTest
 
-    - name: LZ4, thread pool, and partial libs tests
+    - name: LZ4, thread pool, and partial libs tests    # ~2mn
       if: branch = master
       script:
         - make lz4install
@@ -197,8 +197,8 @@ matrix:
         - bash tests/libzstd_partial_builds.sh
 
     # meson dedicated test
-    - name: Xenial (Meson + clang)
-      # env: ALLOW_FAILURES=true
+    - name: Xenial (Meson + clang)    # ~8mn
+      if: branch = master
       dist: xenial
       language: cpp
       compiler: clang