From: "Darrick J. Wong" <djwong@kernel.org>
To: djwong@kernel.org, zlang@redhat.com
Cc: linux-xfs@vger.kernel.org, fstests@vger.kernel.org, guan@eryu.me,
david@fromorbit.com
Subject: [PATCH 4/4] populate: improve runtime of __populate_fill_fs
Date: Tue, 17 Jan 2023 16:44:33 -0800 [thread overview]
Message-ID: <167400103096.1915094.8399897640768588035.stgit@magnolia> (raw)
In-Reply-To: <167400103044.1915094.5935980986164675922.stgit@magnolia>
From: Darrick J. Wong <djwong@kernel.org>
Run the copy loop in parallel to reduce runtime. If filling the
populated fs is selected (which it isn't by default in xfs/349), this
reduces the runtime from ~18s to ~15s, since it's only making enough
copies to reduce the free space by 5%.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
common/populate | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/common/populate b/common/populate
index f34551d272..1c3c28463f 100644
--- a/common/populate
+++ b/common/populate
@@ -151,8 +151,9 @@ __populate_fill_fs() {
echo "FILL FS"
echo "src_sz $SRC_SZ fs_sz $FS_SZ nr $NR"
seq 2 "${NR}" | while read nr; do
- cp -pRdu "${dir}/test/1" "${dir}/test/${nr}"
+ cp -pRdu "${dir}/test/1" "${dir}/test/${nr}" &
done
+ wait
}
# For XFS, force on all the quota options if quota is enabled
next prev parent reply other threads:[~2023-01-18 0:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-18 0:42 [PATCHSET v2 0/4] fstests: filesystem population fixes Darrick J. Wong
2023-01-18 0:43 ` [PATCH 1/4] populate: ensure btree directories are created reliably Darrick J. Wong
2023-01-18 0:44 ` [PATCH 2/4] populate: remove file creation loops that take forever Darrick J. Wong
2023-01-18 15:09 ` Zorro Lang
2023-01-18 0:44 ` [PATCH 3/4] populate: improve attr creation runtime Darrick J. Wong
2023-01-18 15:15 ` Zorro Lang
2023-01-18 0:44 ` Darrick J. Wong [this message]
2023-01-18 15:54 ` [PATCH 4/4] populate: improve runtime of __populate_fill_fs Zorro Lang
2023-01-18 19:22 ` Darrick J. Wong
2023-01-19 5:04 ` Zorro Lang
2023-01-19 16:19 ` Darrick J. Wong
2023-01-18 14:24 ` [PATCHSET v2 0/4] fstests: filesystem population fixes Andrey Albershteyn
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