ci: Use FDO_CI_CONCURRENT as our -j flags when present in the runner env.

fd.o has retuned the x86 runners on packet for -j8.  Rather than having to
tweak our CI every time fd.o decides to rebalance job concurrency, respect
what the runner admin has chosen for their builds (this will also be
convenient for people with large local runners).

Reviewed-by: Michel Dänzer <michel@daenzer.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5669>

.gitlab-ci.yml

@@ -193,7 +193,7 @@ success:
   variables:
     FDO_DISTRIBUTION_VERSION: buster-slim
     FDO_REPO_SUFFIX: "debian/$CI_JOB_NAME"
-    FDO_DISTRIBUTION_EXEC: 'bash .gitlab-ci/container/${CI_JOB_NAME}.sh'
+    FDO_DISTRIBUTION_EXEC: 'env FDO_CI_CONCURRENT=${FDO_CI_CONCURRENT} bash .gitlab-ci/container/${CI_JOB_NAME}.sh'
     # no need to pull the whole repo to build the container image
     GIT_STRATEGY: none
 
@@ -221,7 +221,7 @@ x86_build:
   extends:
     - .use-x86_build-base
   variables:
-    FDO_DISTRIBUTION_TAG: &x86_build "2020-07-10"
+    FDO_DISTRIBUTION_TAG: &x86_build "2020-07-20-jflags"
 
 .use-x86_build:
   variables:
@@ -235,7 +235,7 @@ i386_build:
   extends:
     - .use-x86_build-base
   variables:
-    FDO_DISTRIBUTION_TAG: &i386_build "2020-07-10"
+    FDO_DISTRIBUTION_TAG: &i386_build "2020-07-20-jflags"
 
 .use-i386_build:
   variables:
@@ -249,7 +249,7 @@ ppc64el_build:
   extends:
     - .use-x86_build-base
   variables:
-    FDO_DISTRIBUTION_TAG: &ppc64el_build "2020-07-10"
+    FDO_DISTRIBUTION_TAG: &ppc64el_build "2020-07-20-jflags"
 
 .use-ppc64el_build:
   variables:
@@ -263,7 +263,7 @@ s390x_build:
   extends:
     - .use-x86_build-base
   variables:
-    FDO_DISTRIBUTION_TAG: &s390x_build "2020-06-02"
+    FDO_DISTRIBUTION_TAG: &s390x_build "2020-06-29-jflags"
 
 .use-s390x_build:
   variables:
@@ -305,7 +305,7 @@ x86_test-vk:
 x86_build_old:
   extends: x86_build-base
   variables:
-    FDO_DISTRIBUTION_TAG: &x86_build_old "2020-06-12"
+    FDO_DISTRIBUTION_TAG: &x86_build_old "2020-06-29-jflags"
     FDO_DISTRIBUTION_VERSION: stretch-slim
 
 .use-x86_build_old:
@@ -321,7 +321,7 @@ arm_build:
     - .fdo.container-build@debian@arm64v8
     - .container
   variables:
-    FDO_DISTRIBUTION_TAG: &arm_build "2020-07-10"
+    FDO_DISTRIBUTION_TAG: &arm_build "2020-07-20-jflags"
 
 .use-arm_build:
   variables:
@@ -500,10 +500,8 @@ make git archive:
     - .build-linux
     - .use-x86_build
   stage: scons
-  variables:
-    SCONSFLAGS: "-j4"
   script:
-    - .gitlab-ci/scons-build.sh
+    - env SCONSFLAGS="-j${FDO_CI_CONCURRENT:-4}" .gitlab-ci/scons-build.sh
 
 meson-testing:
   extends:
@@ -895,10 +893,9 @@ piglit-quick_shader:
 llvmpipe-gles2:
   variables:
     DEQP_VER: gles2
-    DEQP_PARALLEL: 4
     NIR_VALIDATE: 0
-    # Don't use threads inside llvmpipe, we've already got all 4 cores
-    # busy with DEQP_PARALLEL.
+    # Don't use threads inside llvmpipe, we've already got all cores
+    # busy at the deqp-runner level.
     LP_NUM_THREADS: 0
     DEQP_EXPECTED_FAILS: deqp-llvmpipe-fails.txt
     LIBGL_ALWAYS_SOFTWARE: "true"
@@ -932,11 +929,10 @@ softpipe-gles31:
 virgl-gles2-on-gl:
   variables:
     DEQP_VER: gles2
-    DEQP_PARALLEL: 4
     NIR_VALIDATE: 0
     DEQP_NO_SAVE_RESULTS: 1
-    # Don't use threads inside llvmpipe, we've already got all 4 cores
-    # busy with DEQP_PARALLEL.
+    # Don't use threads inside llvmpipe, we've already got all cores
+    # busy at the deqp-runner level.
     LP_NUM_THREADS: 0
     DEQP_EXPECTED_FAILS: deqp-virgl-gl-fails.txt
     DEQP_OPTIONS: "--deqp-log-images=disable"

.gitlab-ci/container/container_pre_build.sh

@@ -14,16 +14,11 @@ export CXX="/usr/lib/ccache/g++"
 
 ccache --show-stats
 
-if uname -m | grep -q arm || uname -m | grep -q aarch64; then
-    export JFLAGS=-j8
-else
-    export JFLAGS=-j4
-fi
-
 # Make a wrapper script for ninja to always include the -j flags
-echo /usr/bin/ninja $JFLAGS '"$@"' > /usr/local/bin/ninja
+echo '#!/bin/sh -x' > /usr/local/bin/ninja
+echo '/usr/bin/ninja -j${FDO_CI_CONCURRENT:-4} "$@"' >> /usr/local/bin/ninja
 chmod +x /usr/local/bin/ninja
 
 # Set MAKEFLAGS so that all make invocations in container builds include the
 # flags (doesn't apply to non-container builds, but we don't run make there)
-export MAKEFLAGS=$JFLAGS
+export MAKEFLAGS="-j${FDO_CI_CONCURRENT:-4}"

.gitlab-ci/deqp-runner.sh

@@ -80,6 +80,10 @@ set +e
 
 if [ -n "$DEQP_PARALLEL" ]; then
    JOB="--job $DEQP_PARALLEL"
+elif [ -n "$FDO_CI_CONCURRENT" ]; then
+   JOB="--job $FDO_CI_CONCURRENT"
+else
+   JOB="--job 4"
 fi
 
 run_cts() {

.gitlab-ci/piglit/run.sh

@@ -11,7 +11,7 @@ PIGLIT_OPTIONS=$(echo $PIGLIT_OPTIONS | head -n 1)
 xvfb-run --server-args="-noreset" sh -c \
          "export LD_LIBRARY_PATH=$OLDPWD/install/lib;
          wflinfo --platform glx --api gl --profile core | grep \"Mesa $VERSION\\\$\" &&
-         ./piglit run -j4 $PIGLIT_OPTIONS $PIGLIT_PROFILES $OLDPWD/results"
+         ./piglit run -j${FDO_CI_CONCURRENT:-4} $PIGLIT_OPTIONS $PIGLIT_PROFILES $OLDPWD/results"
 
 PIGLIT_RESULTS=${PIGLIT_RESULTS:-$PIGLIT_PROFILES}
 mkdir -p .gitlab-ci/piglit