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([49.207.219.20]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-245ed517beesm18848935ad.134.2025.08.20.01.15.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Aug 2025 01:15:41 -0700 (PDT) From: "Nirjhar Roy (IBM)" To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, ritesh.list@gmail.com, ojaswin@linux.ibm.com, djwong@kernel.org, zlang@kernel.org, fdmanana@kernel.org, nirjhar.roy.lists@gmail.com, quwenruo.btrfs@gmx.com Subject: [PATCH v3 4/4] generic/563: Increase the iosize to to cover for btrfs Date: Wed, 20 Aug 2025 08:15:07 +0000 Message-Id: <7e337d30307b293b30c6ad00c1fc222bbeed640c.1755677274.git.nirjhar.roy.lists@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit When tested with block size/node size 64K on btrfs, then the test fails with the folllowing error: QA output created by 563 read/write read is in range -write is in range +write has value of 8855552 +write is NOT in range 7969177.6 .. 8808038.4 write -> read/write ... The slight increase in the amount of bytes that are written is because of the increase in the the nodesize(metadata) and hence it exceeds the tolerance limit slightly. Fix this by increasing the iosize. Increasing the iosize increases the tolerance range and covers the tolerance for btrfs higher node sizes. A very detailed explanation is given by Qu Wenruo in [1] [1] https://lore.kernel.org/all/fa0dc9e3-2025-49f2-9f20-71190382fce5@gmx.com/ Reviewed-by: Qu Wenruo Reported-by: Disha Goel Signed-off-by: Nirjhar Roy (IBM) --- tests/generic/563 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/generic/563 b/tests/generic/563 index 89a71aa4..6cb9ddb0 100755 --- a/tests/generic/563 +++ b/tests/generic/563 @@ -43,7 +43,7 @@ _require_block_device $SCRATCH_DEV _require_non_zoned_device ${SCRATCH_DEV} cgdir=$CGROUP2_PATH -iosize=$((1024 * 1024 * 8)) +iosize=$((1024 * 1024 * 16)) # Check cgroup read/write charges against expected values. Allow for some # tolerance as different filesystems seem to account slightly differently. -- 2.34.1