Question
All tests were conducted on the same physical machine; each test ran for 60 seconds and was executed under the /root directory every time.
As shown in the table below, CubeSandbox exhibits noticeably lower storage I/O performance compared to gVisor and Kata. Could you help analyze the primary contributing factors?
Test Results：
unit： MB/s
| Test Item |
HOSTOS |
CubeSandbox hostdir volume |
Cube Sandbox MVM WR layer |
gvisor |
kata-fc |
| read |
1416 |
4509 |
1047 |
6045 |
4024 |
| write |
2955 |
2119 |
820 |
2643 |
2296 |
| randread |
171 |
508 |
393 |
1327 |
407 |
| randwtire |
1234 |
148 |
111 |
816 |
370 |
Test Script
#!/bin/bash
run_fio_test() {
local test_file="$1"
local test_size="$2"
local num_jobs="$3"
local block_size="$4"
local read_write="$5"
local direct="$6"
fio \
--name=iodist_test \
--filename="$test_file" \
--size="$test_size" \
--numjobs="$num_jobs" \
--bs="$block_size" \
--rw="$read_write" \
--runtime=60 \
--time_based \
--direct="$direct" \
--group_reporting
}
echo_value(){
echo "${1}" | grep "run="
}
main() {
local output_dir="$(cd "$(dirname "$0")" && pwd)"
local test_file="$output_dir/fio_test_file"
local timestamp=$(date '+%Y%m%d_%H%M%S')
echo ""
echo "[1/4] read test"
local json=$(run_fio_test "$test_file" "1G" 4 "128k" "read" 1)
echo_value "${json}"
echo ""
echo "[2/4] write test"
local json=$(run_fio_test "$test_file" "1G" 4 "128k" "write" 1)
echo_value "${json}"
echo ""
echo "[3/4] rand read"
local json=$(run_fio_test "$test_file" "1G" 4 "4k" "randread" 1)
echo_value "${json}"
echo ""
echo "[4/4] rand write"
local json=$(run_fio_test "$test_file" "1G" 4 "4k" "randwrite" 1)
echo_value "${json}"
if [ -f "$test_file" ]; then
rm -f "$test_file"
fi
}
main
Question
All tests were conducted on the same physical machine; each test ran for 60 seconds and was executed under the /root directory every time.
As shown in the table below, CubeSandbox exhibits noticeably lower storage I/O performance compared to gVisor and Kata. Could you help analyze the primary contributing factors?
Test Results：
unit： MB/s
Test Script