diff mbox series

[v4,4/4] Makefile/coccicheck: set SPATCH_BATCH_SIZE to 8

Message ID 51b782bb9b6270a0b1f69df8fe9e2e4f5aead2a2.1616414951.git.avarab@gmail.com (mailing list archive)
State New, archived
Headers show
Series Makefile/coccicheck: fix bugs and speed it up | expand

Commit Message

Ævar Arnfjörð Bjarmason March 22, 2021, 12:11 p.m. UTC
Change the "xargs -n X" limit for running spatch from 1 to 8, as
suggested by Jeff King[1]. Now that we're not using --all-includes
anymore this is going to take much less memory, so bumping the limit
should be OK.

1. https://lore.kernel.org/git/YEIGzXMDax83cwAx@coredump.intra.peff.net/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

René Scharfe March 22, 2021, 6:05 p.m. UTC | #1
Am 22.03.21 um 13:11 schrieb Ævar Arnfjörð Bjarmason:
> Change the "xargs -n X" limit for running spatch from 1 to 8, as
> suggested by Jeff King[1]. Now that we're not using --all-includes
> anymore this is going to take much less memory, so bumping the limit
> should be OK.

But --all-includes is still used, so does this patch still make sense?

>
> 1. https://lore.kernel.org/git/YEIGzXMDax83cwAx@coredump.intra.peff.net/
>
> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
> ---
>  Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Makefile b/Makefile
> index eaac14275bb..543fe472482 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1204,7 +1204,7 @@ SPATCH_FLAGS = --all-includes --include-headers-for-types --patch .
>  # For the 'coccicheck' target; setting SPATCH_BATCH_SIZE higher will
>  # usually result in less CPU usage at the cost of higher peak memory.
>  # Setting it to 0 will feed all files in a single spatch invocation.
> -SPATCH_BATCH_SIZE = 1
> +SPATCH_BATCH_SIZE = 8
>
>  # For the 'coccicheck' target; SPATCH_XARGS can be used to manually
>  # tweak the xargs invocation. By default we invoke "xargs -n 1", and
>
Jeff King March 24, 2021, 7:27 p.m. UTC | #2
On Mon, Mar 22, 2021 at 07:05:12PM +0100, René Scharfe. wrote:

> Am 22.03.21 um 13:11 schrieb Ævar Arnfjörð Bjarmason:
> > Change the "xargs -n X" limit for running spatch from 1 to 8, as
> > suggested by Jeff King[1]. Now that we're not using --all-includes
> > anymore this is going to take much less memory, so bumping the limit
> > should be OK.
> 
> But --all-includes is still used, so does this patch still make sense?

I got similar results on the state before this series (using just
--all-includes). So presumably it holds up. I'm not at all convinced,
though, that this isn't simply unique to my system, or to a version of
spatch.

-Peff
diff mbox series

Patch

diff --git a/Makefile b/Makefile
index eaac14275bb..543fe472482 100644
--- a/Makefile
+++ b/Makefile
@@ -1204,7 +1204,7 @@  SPATCH_FLAGS = --all-includes --include-headers-for-types --patch .
 # For the 'coccicheck' target; setting SPATCH_BATCH_SIZE higher will
 # usually result in less CPU usage at the cost of higher peak memory.
 # Setting it to 0 will feed all files in a single spatch invocation.
-SPATCH_BATCH_SIZE = 1
+SPATCH_BATCH_SIZE = 8
 
 # For the 'coccicheck' target; SPATCH_XARGS can be used to manually
 # tweak the xargs invocation. By default we invoke "xargs -n 1", and