Исправление
sanyock,
(текущая версия)
:
echo 3 > /proc/sys/vm/drop_caches;
dd count=262144 bs=4k if=/dev/sde1 of=/dev/null
262144+0 records in
262144+0 records out
1073741824 bytes (1.1 GB) copied, 7.94995 s, 135 MB/s
echo 3 > /proc/sys/vm/drop_caches;
dd count=131072 bs=8k if=/dev/sde1 of=/dev/null
131072+0 records in
131072+0 records out
1073741824 bytes (1.1 GB) copied, 7.94771 s, 135 MB/s
echo 3 > /proc/sys/vm/drop_caches;
dd count=1024 bs=1M if=/dev/sde1 of=/dev/null
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 7.95022 s, 135 MB/s
без сброса кэша оперативки:
dd count=1024 bs=1M if=/dev/sde1 of=/dev/null
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 0.412724 s, 2.6 GB/s
Исправление
sanyock,
:
echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=262144 bs=4k if=/dev/sde1 of=/dev/null
262144+0 records in
262144+0 records out
1073741824 bytes (1.1 GB) copied, 7.94995 s, 135 MB/s
echo 3 > /proc/sys/vm/drop_caches;
dd count=131072 bs=8k if=/dev/sde1 of=/dev/null
131072+0 records in
131072+0 records out
1073741824 bytes (1.1 GB) copied, 7.94771 s, 135 MB/s
echo 3 > /proc/sys/vm/drop_caches;
dd count=1024 bs=1M if=/dev/sde1 of=/dev/null
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 7.95022 s, 135 MB/s
без сброса кэша оперативки:
dd count=1024 bs=1M if=/dev/sde1 of=/dev/null
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 0.412724 s, 2.6 GB/s
Исправление
sanyock,
:
/utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=262144 bs=4k if=/dev/sde1 of=/dev/null
262144+0 records in
262144+0 records out
1073741824 bytes (1.1 GB) copied, 7.94995 s, 135 MB/s
/utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=131072 bs=8k if=/dev/sde1 of=/dev/null
131072+0 records in
131072+0 records out
1073741824 bytes (1.1 GB) copied, 7.94771 s, 135 MB/s
/utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=1024 bs=1M if=/dev/sde1 of=/dev/null
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 7.95022 s, 135 MB/s
без сброса кэша оперативки:
dd count=1024 bs=1M if=/dev/sde1 of=/dev/null
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 0.412724 s, 2.6 GB/s
Исправление
sanyock,
:
/utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=262144 bs=4k if=/dev/sde1 of=/dev/null
262144+0 records in
262144+0 records out
1073741824 bytes (1.1 GB) copied, 7.94995 s, 135 MB/s
/utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=131072 bs=8k if=/dev/sde1 of=/dev/null
131072+0 records in
131072+0 records out
1073741824 bytes (1.1 GB) copied, 7.94771 s, 135 MB/s
/utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=1024 bs=1M if=/dev/sde1 of=/dev/null
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 7.95022 s, 135 MB/s
без сброса кэша оперативки:
dd count=1024 bs=1M if=/dev/sde1 of=/dev/null 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 0.412724 s, 2.6 GB/s
Исправление
sanyock,
:
/utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=262144 bs=4k if=/dev/sde1 of=/dev/null
262144+0 records in
262144+0 records out
1073741824 bytes (1.1 GB) copied, 7.94995 s, 135 MB/s
/utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=131072 bs=8k if=/dev/sde1 of=/dev/null
131072+0 records in
131072+0 records out
1073741824 bytes (1.1 GB) copied, 7.94771 s, 135 MB/s
/utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
/utils/test/hdd > dd count=1024 bs=1M if=/dev/sde1 of=/dev/null
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 7.95022 s, 135 MB/s
без сброса кэша оперативки: dd count=1024 bs=1M if=/dev/sde1 of=/dev/null 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 0.412724 s, 2.6 GB/s
Исходная версия
sanyock,
:
root@workstation /utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
root@workstation /utils/test/hdd > dd count=262144 bs=4k if=/dev/sde1 of=/dev/null
262144+0 records in
262144+0 records out
1073741824 bytes (1.1 GB) copied, 7.94995 s, 135 MB/s
root@workstation /utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
root@workstation /utils/test/hdd > dd count=131072 bs=8k if=/dev/sde1 of=/dev/null
131072+0 records in
131072+0 records out
1073741824 bytes (1.1 GB) copied, 7.94771 s, 135 MB/s
root@workstation /utils/test/hdd > echo 3 > /proc/sys/vm/drop_caches;
root@workstation /utils/test/hdd > dd count=1024 bs=1M if=/dev/sde1 of=/dev/null
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 7.95022 s, 135 MB/s