Добрый день!
Такой сервер я уже тестировал 2 года назад и теперь вот решил попробовать еще разок. В целом все без изменений кроме того что скорость чтения и записи на диск стала сильно выше.
Есть ощущение что там SSD =)
Опубликую только результаты связанные со скоростью записи на диск, остальное в пределах погрешности.
Сведения о VM
PT Summary
pt-summary
-----------
# Percona Toolkit System Summary Report ######################
Date | 2020-09-04 10:40:50 UTC (local TZ: MSK +0300)
Hostname | vds1968051.my-ihor.ru
Uptime | 10 min, 1 user, load average: 0.04, 0.13, 0.08
System | Red Hat; KVM; vRHEL 7.6.0 PC (i440FX + PIIX, 1996) (Other)
Service Tag | Not Specified
Platform | Linux
Release | CentOS Linux release 7.8.2003 (Core)
Kernel | 3.10.0-1127.19.1.el7.x86_64
Architecture | CPU = 64-bit, OS = 64-bit
Threading | NPTL 2.17
SELinux | Disabled
Virtualized | VMWare
# Processor ##################################################
Processors | physical = 1, cores = 1, virtual = 1, hyperthreading = no
Speeds | 1x2799.998
Models | 1xQEMU Virtual CPU version 2.5+
Caches | 1x16384 KB
# Memory #####################################################
Total | 486.9M
Free | 69.2M
Used | physical = 95.6M, swap allocated = 0.0, swap used = 0.0, virtual = 95.6M
Shared | 4.4M
Buffers | 322.0M
Caches | 374.1M
Dirty | 92 kB
UsedRSS | 106.1M
Swappiness | 30
DirtyPolicy | 30, 10
DirtyStatus | 0, 0
Locator Size Speed Form Factor Type Type Detail
========= ======== ================= ============= ============= ===========
DIMM 0 512 MB Unknown DIMM RAM Other
# Mounted Filesystems ########################################
Filesystem Size Used Type Opts Mountpoint
devtmpfs 233M 0% devtmpfs rw,nosuid,size=237644k,nr_inodes=59411,mode=755 /dev
/dev/vda1 488M 23% ext4 rw,relatime,data=ordered /boot
/dev/vda2 9.5G 16% xfs rw,relatime,attr2,inode64,noquota /
tmpfs 244M 0% tmpfs rw,nosuid,nodev /dev/shm
tmpfs 244M 0% tmpfs rw,nosuid,nodev,mode=755 /dev/shm
tmpfs 244M 0% tmpfs rw,nosuid,nodev,relatime,size=49864k,mode=700 /dev/shm
tmpfs 244M 0% tmpfs ro,nosuid,nodev,noexec,mode=755 /dev/shm
tmpfs 244M 0% tmpfs rw,nosuid,nodev /sys/fs/cgroup
tmpfs 244M 0% tmpfs rw,nosuid,nodev,mode=755 /sys/fs/cgroup
tmpfs 244M 0% tmpfs rw,nosuid,nodev,relatime,size=49864k,mode=700 /sys/fs/cgroup
tmpfs 244M 0% tmpfs ro,nosuid,nodev,noexec,mode=755 /sys/fs/cgroup
tmpfs 244M 2% tmpfs rw,nosuid,nodev /run
tmpfs 244M 2% tmpfs rw,nosuid,nodev,mode=755 /run
tmpfs 244M 2% tmpfs rw,nosuid,nodev,relatime,size=49864k,mode=700 /run
tmpfs 244M 2% tmpfs ro,nosuid,nodev,noexec,mode=755 /run
tmpfs 49M 0% tmpfs rw,nosuid,nodev /run/user/0
tmpfs 49M 0% tmpfs rw,nosuid,nodev,mode=755 /run/user/0
tmpfs 49M 0% tmpfs rw,nosuid,nodev,relatime,size=49864k,mode=700 /run/user/0
tmpfs 49M 0% tmpfs ro,nosuid,nodev,noexec,mode=755 /run/user/0
# Disk Schedulers And Queue Size #############################
vda | [mq-deadline] 256
# Disk Partioning ############################################
Device Type Start End Size
============ ==== ========== ========== ==================
/dev/vda Disk 10737418240
/dev/vda1 Part 2048 1050623 536870400
/dev/vda2 Part 1050624 20971519 10199498240
# Kernel Inode State #########################################
dentry-state | 30377 19674 45 0 9185 0
file-nr | 928 0 46628
inode-nr | 20189 102
# LVM Volumes ################################################
Unable to collect information
# LVM Volume Groups ##########################################
Unable to collect information
# RAID Controller ############################################
Controller | No RAID controller detected
# Network Config #############################################
Controller | Red Hat, Inc. Virtio network device
FIN Timeout | 60
Port Range | 60999
# Interface Statistics #######################################
interface rx_bytes rx_packets rx_errors tx_bytes tx_packets tx_errors
========= ========= ========== ========== ========== ========== ==========
lo 0 0 0 0 0 0
eth0 60000000 40000 0 2250000 22500 0
# Network Devices ############################################
Device Speed Duplex
========= ========= =========
eth0
# Top Processes ##############################################
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 20 0 43580 3776 2472 S 0.0 0.8 0:01.14 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
4 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
5 root 20 0 0 0 0 S 0.0 0.0 0:00.09 kworker/u2:0
6 root 20 0 0 0 0 S 0.0 0.0 0:00.05 ksoftirqd/0
7 root rt 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root 20 0 0 0 0 R 0.0 0.0 0:00.15 rcu_sched
10 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 lru-add-dra+
# Notable Processes ##########################################
PID OOM COMMAND
810 -17 sshd
# Memory mamagement ##########################################
Transparent huge pages are currently disabled on the system.
# The End ####################################################
Тесты
DD
dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync 2>&1 rm -f test ----------- 16384+0 records in 16384+0 records out 1073741824 bytes (1.1 GB) copied, 2.1473 s, 500 MB/s 16384+0 records in 16384+0 records out 1073741824 bytes (1.1 GB) copied, 1.64194 s, 654 MB/s 16384+0 records in 16384+0 records out 1073741824 bytes (1.1 GB) copied, 1.71044 s, 628 MB/s
Это в 10 раз быстрее того что было до этого.
Sysbench тест диска
sysbench fileio --file-total-size=1G prepare
-----------
sysbench 1.0.17 (using system LuaJIT 2.0.4)
128 files, 8192Kb each, 1024Mb total
Creating files for the test...
Extra file open flags: (none)
Creating file test_file.0
...
Creating file test_file.127
1073741824 bytes written in 3.61 seconds (283.34 MiB/sec).
sysbench fileio --file-total-size=1G --file-test-mode=rndrw --time=300 --max-requests=0 run
-----------
sysbench 1.0.17 (using system LuaJIT 2.0.4)
Running the test with following options:
Number of threads: 1
Initializing random number generator from current time
Extra file open flags: (none)
128 files, 8MiB each
1GiB total file size
Block size 16KiB
Number of IO requests: 0
Read/Write ratio for combined random IO test: 1.50
Periodic FSYNC enabled, calling fsync() each 100 requests.
Calling fsync() at the end of test, Enabled.
Using synchronous I/O mode
Doing random r/w test
Initializing worker threads...
Threads started!
File operations:
reads/s: 1825.15
writes/s: 1216.77
fsyncs/s: 3893.78
Throughput:
read, MiB/s: 28.52
written, MiB/s: 19.01
General statistics:
total time: 300.0213s
total number of events: 2080799
Latency (ms):
min: 0.00
avg: 0.14
max: 136.85
95th percentile: 0.50
sum: 296767.58
Threads fairness:
events (avg/stddev): 2080799.0000/0.00
execution time (avg/stddev): 296.7676/0.00
Выводы
Взял себе такой сервер чтобы запускать на нем автоматическую сборку веб-приложения. Работает все достаточно шустро для таких скромных показателей. С возросшей производительностью диска это очень хороший вариант за 100 рублей в месяц.