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Tue, 02 Dec 2025 02:17:59 -0800 (PST) MIME-Version: 1.0 References: <20251119181333.991099-1-sjg@chromium.org> <20251119181333.991099-8-sjg@chromium.org> In-Reply-To: <20251119181333.991099-8-sjg@chromium.org> From: Chen-Yu Tsai Date: Tue, 2 Dec 2025 18:17:48 +0800 X-Gm-Features: AWmQ_bkDP2tY6V4lgah0ZJ6jJsxSJmd_cZ-9gWNxark5x0Lt7dHgeEEKpi8sTO8 Message-ID: Subject: Re: [PATCH v6 7/8] scripts/make_fit: Support a few more parallel compressors To: Simon Glass Cc: linux-arm-kernel@lists.infradead.org, =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= , Masahiro Yamada , Tom Rini , Ahmad Fatoum , =?UTF-8?B?SiAuIE5ldXNjaMOkZmVy?= , Nicolas Schier , David Sterba , Nick Terrell , linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251202_021801_484324_B2232C4A X-CRM114-Status: GOOD ( 16.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Nov 20, 2025 at 2:14=E2=80=AFAM Simon Glass wrot= e: > > Add support for pbzip2 and plzip which can compress in parallel. This > speeds up the ramdisk compression. > > Signed-off-by: Simon Glass > --- > > (no changes since v1) > > scripts/make_fit.py | 11 ++++++++--- > 1 file changed, 8 insertions(+), 3 deletions(-) > > diff --git a/scripts/make_fit.py b/scripts/make_fit.py > index 9dfef11fc4b3..64038f17a51e 100755 > --- a/scripts/make_fit.py > +++ b/scripts/make_fit.py > @@ -57,10 +57,10 @@ import libfdt > CompTool =3D collections.namedtuple('CompTool', 'ext,tools') > > COMP_TOOLS =3D { > - 'bzip2': CompTool('.bz2', 'bzip2'), > + 'bzip2': CompTool('.bz2', 'pbzip2,bzip2'), > 'gzip': CompTool('.gz', 'pigz,gzip'), > 'lz4': CompTool('.lz4', 'lz4'), > - 'lzma': CompTool('.lzma', 'lzma'), > + 'lzma': CompTool('.lzma', 'plzip,lzma'), > 'lzo': CompTool('.lzo', 'lzop'), > 'zstd': CompTool('.zstd', 'zstd'), > } > @@ -220,7 +220,12 @@ def compress_data(inf, compress): > done =3D False > for tool in comp.tools.split(','): > try: > - subprocess.call([tool, '-c'], stdin=3Dinf, stdout=3D= outf) > + # Add parallel flags for tools that support them > + cmd =3D [tool] > + if tool in ('zstd', 'xz'): There's no 'xz' tool in the list though. And this hunk isn't mentioned or explained in the commit message. > + cmd.extend(['-T0']) # Use all available cores Zero is already the default for 'xz' in 5.8.1. ChenYu > + cmd.append('-c') > + subprocess.call(cmd, stdin=3Dinf, stdout=3Doutf) > done =3D True > break > except FileNotFoundError: > -- > 2.43.0 >