REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1913
To improve build performance by default the maximum
processors should be used for building.
To support this, NUMBER_OF_PROCESSORS in build.cfg has
new definition:
0 = AUTO. Maximum of processors will be used.
non-zero = limit or force the number of processors.
Test: tried several NUMBER_OF_PROCESSORS settings and
the build parameter can be updated accordingly
also builds successfully.
Cc: Michael Kubacki <michael.a.kuba...@intel.com>
Cc: Nate DeSimone <nathaniel.l.desim...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Signed-off-by: Chasel Chiu <chasel.c...@intel.com>
---
Platform/Intel/build.cfg | 2 +-
Platform/Intel/build_bios.py | 8 +++++++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/Platform/Intel/build.cfg b/Platform/Intel/build.cfg
index 6c23e5eabc..fc6e4fe824 100644
--- a/Platform/Intel/build.cfg
+++ b/Platform/Intel/build.cfg
@@ -46,7 +46,7 @@ FSP_TEST_RELEASE = FALSE
SECURE_BOOT_ENABLE = FALSE
REBUILD_MODE =
BUILD_ROM_ONLY =
-NUMBER_OF_PROCESSORS = 1
+NUMBER_OF_PROCESSORS = 0
[PLATFORMS]
diff --git a/Platform/Intel/build_bios.py b/Platform/Intel/build_bios.py
index 09eceddeff..864511ac4d 100644
--- a/Platform/Intel/build_bios.py
+++ b/Platform/Intel/build_bios.py
@@ -21,6 +21,7 @@ import shutil
import argparse
import traceback
import subprocess
+import multiprocessing
from importlib import import_module
try:
@@ -345,7 +346,12 @@ def build(config):
print(" BUILD_ROM_ONLY = ", config.get("BUILD_ROM_ONLY"))
print("==========================================")
- command = ["build", "-n", config["NUMBER_OF_PROCESSORS"]]
+ NumberOfProcessors = config["NUMBER_OF_PROCESSORS"]
+ if config["NUMBER_OF_PROCESSORS"] == "0":
+ # 0 means AUTO, maximum number of processors will be set
+ NumberOfProcessors = str(multiprocessing.cpu_count())
+ print ("Number of processors set to " + NumberOfProcessors)
+ command = ["build", "-n", NumberOfProcessors]
if config["REBUILD_MODE"] and config["REBUILD_MODE"] != "":
command.append(config["REBUILD_MODE"])
--
2.13.3.windows.1
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