Re: [PATCH v2 2/2] generic: add tests for read/writes from hugepages-backed buffers

[Brian Foster <bfoster@redhat.com>]

On Fri, Dec 27, 2024 at 11:33:11AM -0800, Joanne Koong wrote:
> Add generic tests 758 and 759 for testing reads/writes from buffers
> backed by hugepages.
> 
> Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
> ---

Reviewed-by: Brian Foster <bfoster@redhat.com>

>  common/rc             | 13 +++++++++++++
>  tests/generic/758     | 22 ++++++++++++++++++++++
>  tests/generic/758.out |  4 ++++
>  tests/generic/759     | 26 ++++++++++++++++++++++++++
>  tests/generic/759.out |  4 ++++
>  5 files changed, 69 insertions(+)
>  create mode 100755 tests/generic/758
>  create mode 100644 tests/generic/758.out
>  create mode 100755 tests/generic/759
>  create mode 100644 tests/generic/759.out
> 
> diff --git a/common/rc b/common/rc
> index 1b2e4508..825e350e 100644
> --- a/common/rc
> +++ b/common/rc
> @@ -3016,6 +3016,19 @@ _require_xfs_io_command()
>  	fi
>  }
>  
> +# check that the system supports transparent hugepages
> +_require_thp()
> +{
> +    if [ ! -e /sys/kernel/mm/transparent_hugepage/enabled ]; then
> +	    _notrun "system doesn't support transparent hugepages"
> +    fi
> +
> +    thp_status=$(cat /sys/kernel/mm/transparent_hugepage/enabled)
> +    if [[ $thp_status == *"[never]"* ]]; then
> +	    _notrun "system doesn't have transparent hugepages enabled"
> +    fi
> +}
> +
>  # check that kernel and filesystem support direct I/O, and check if "$1" size
>  # aligned (optional) is supported
>  _require_odirect()
> diff --git a/tests/generic/758 b/tests/generic/758
> new file mode 100755
> index 00000000..e7cd8cdc
> --- /dev/null
> +++ b/tests/generic/758
> @@ -0,0 +1,22 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# FS QA Test No. 758
> +#
> +# fsx exercising reads/writes from userspace buffers
> +# backed by hugepages
> +#
> +. ./common/preamble
> +_begin_fstest rw auto quick
> +
> +. ./common/filter
> +
> +_require_test
> +_require_thp
> +
> +run_fsx -N 10000            -l 500000 -h
> +run_fsx -N 10000  -o 8192   -l 500000 -h
> +run_fsx -N 10000  -o 128000 -l 500000 -h
> +
> +status=0
> +exit
> diff --git a/tests/generic/758.out b/tests/generic/758.out
> new file mode 100644
> index 00000000..af04bb14
> --- /dev/null
> +++ b/tests/generic/758.out
> @@ -0,0 +1,4 @@
> +QA output created by 758
> +fsx -N 10000 -l 500000 -h
> +fsx -N 10000 -o 8192 -l 500000 -h
> +fsx -N 10000 -o 128000 -l 500000 -h
> diff --git a/tests/generic/759 b/tests/generic/759
> new file mode 100755
> index 00000000..514e7603
> --- /dev/null
> +++ b/tests/generic/759
> @@ -0,0 +1,26 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# FS QA Test No. 759
> +#
> +# fsx exercising direct IO reads/writes from userspace buffers
> +# backed by hugepages
> +#
> +. ./common/preamble
> +_begin_fstest rw auto quick
> +
> +. ./common/filter
> +
> +_require_test
> +_require_odirect
> +_require_thp
> +
> +psize=`$here/src/feature -s`
> +bsize=`$here/src/min_dio_alignment $TEST_DIR $TEST_DEV`
> +
> +run_fsx -N 10000            -l 500000 -r PSIZE -t BSIZE -w BSIZE -Z -R -W -h
> +run_fsx -N 10000  -o 8192   -l 500000 -r PSIZE -t BSIZE -w BSIZE -Z -R -W -h
> +run_fsx -N 10000  -o 128000 -l 500000 -r PSIZE -t BSIZE -w BSIZE -Z -R -W -h
> +
> +status=0
> +exit
> diff --git a/tests/generic/759.out b/tests/generic/759.out
> new file mode 100644
> index 00000000..86bb66ef
> --- /dev/null
> +++ b/tests/generic/759.out
> @@ -0,0 +1,4 @@
> +QA output created by 759
> +fsx -N 10000 -l 500000 -r PSIZE -t BSIZE -w BSIZE -Z -R -W -h
> +fsx -N 10000 -o 8192 -l 500000 -r PSIZE -t BSIZE -w BSIZE -Z -R -W -h
> +fsx -N 10000 -o 128000 -l 500000 -r PSIZE -t BSIZE -w BSIZE -Z -R -W -h
> -- 
> 2.47.1
>