qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [PATCH] iotests: Lower 064's memory usage


From: Jeff Cody
Subject: Re: [Qemu-devel] [PATCH] iotests: Lower 064's memory usage
Date: Fri, 23 Jan 2015 10:06:47 -0500
User-agent: Mutt/1.5.21 (2010-09-15)

On Fri, Jan 23, 2015 at 09:59:45AM -0500, Max Reitz wrote:
> Test 064 reads a lot of data at once which currently results in qemu-io
> having to allocate up to about 1 GB of memory (958 MB, to be exact).
> This patch lowers that amount to 128 MB by making the test read smaller
> chunks.
> 
> Signed-off-by: Max Reitz <address@hidden>
> ---
>  tests/qemu-iotests/064     | 19 +++++++++++++++++--
>  tests/qemu-iotests/064.out | 34 ++++++++++++++++++++++++++++++----
>  2 files changed, 47 insertions(+), 6 deletions(-)
> 
> diff --git a/tests/qemu-iotests/064 b/tests/qemu-iotests/064
> index 1c74c31..7564563 100755
> --- a/tests/qemu-iotests/064
> +++ b/tests/qemu-iotests/064
> @@ -54,7 +54,15 @@ $QEMU_IO -r -c "read -pP 0x96 33M 33M" "$TEST_IMG" | 
> _filter_qemu_io
>  
>  echo
>  echo "=== Verify pattern 0x00, 66M - 1024M ==="
> -$QEMU_IO -r -c "read -pP 0x00 66M 958M" "$TEST_IMG" | _filter_qemu_io
> +$QEMU_IO -r -c "read -pP 0x00 66M 62M" \
> +            -c "read -pP 0x00 128M 128M" \
> +            -c "read -pP 0x00 256M 128M" \
> +            -c "read -pP 0x00 384M 128M" \
> +            -c "read -pP 0x00 512M 128M" \
> +            -c "read -pP 0x00 640M 128M" \
> +            -c "read -pP 0x00 768M 128M" \
> +            -c "read -pP 0x00 896M 128M" \
> +            "$TEST_IMG" | _filter_qemu_io
>  
>  echo
>  echo "=== Verify pattern write, 0xc3 99M-157M ==="
> @@ -63,7 +71,14 @@ $QEMU_IO -c "write -pP 0xc3 99M 58M" "$TEST_IMG" | 
> _filter_qemu_io
>  $QEMU_IO -c "read -pP 0xa5 0 33M" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IO -c "read -pP 0x96 33M 33M" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IO -c "read -pP 0x00 66M 33M" "$TEST_IMG" | _filter_qemu_io
> -$QEMU_IO -c "read -pP 0x00 157MM 867MM" "$TEST_IMG" | _filter_qemu_io
> +$QEMU_IO -c "read -pP 0x00 157M 99M" \
> +         -c "read -pP 0x00 256M 128M" \
> +         -c "read -pP 0x00 384M 128M" \
> +         -c "read -pP 0x00 512M 128M" \
> +         -c "read -pP 0x00 640M 128M" \
> +         -c "read -pP 0x00 768M 128M" \
> +         -c "read -pP 0x00 896M 128M" \
> +         "$TEST_IMG" | _filter_qemu_io
>  # now verify what we should have actually written
>  $QEMU_IO -c "read -pP 0xc3 99M 58M" "$TEST_IMG" | _filter_qemu_io
>  
> diff --git a/tests/qemu-iotests/064.out b/tests/qemu-iotests/064.out
> index 5346a4e..1a5b9e2 100644
> --- a/tests/qemu-iotests/064.out
> +++ b/tests/qemu-iotests/064.out
> @@ -9,8 +9,22 @@ read 34603008/34603008 bytes at offset 34603008
>  33 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>  
>  === Verify pattern 0x00, 66M - 1024M ===
> -read 1004535808/1004535808 bytes at offset 69206016
> -958 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 65011712/65011712 bytes at offset 69206016
> +62 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 134217728
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 268435456
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 402653184
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 536870912
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 671088640
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 805306368
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 939524096
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>  
>  === Verify pattern write, 0xc3 99M-157M ===
>  wrote 60817408/60817408 bytes at offset 103809024
> @@ -21,8 +35,20 @@ read 34603008/34603008 bytes at offset 34603008
>  33 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>  read 34603008/34603008 bytes at offset 69206016
>  33 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> -read 909115392/909115392 bytes at offset 164626432
> -867 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 103809024/103809024 bytes at offset 164626432
> +99 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 268435456
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 402653184
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 536870912
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 671088640
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 805306368
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +read 134217728/134217728 bytes at offset 939524096
> +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>  read 60817408/60817408 bytes at offset 103809024
>  58 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>  *** done
> -- 
> 2.1.0
>

Reviewed-by: Jeff Cody <address@hidden>



reply via email to

[Prev in Thread] Current Thread [Next in Thread]