分类目录归档:运维

为什么要从VPS转向Dedicated Server

用linode好几年了,但是有时候发现硬盘的I/O非常不稳定,如下面的这个VPS的benchmark所示,第一次测速只有 9.4 MB/s,这么差的性能已经非常影响线上业务了。究其原因,大概是因为你有一个比较折腾的邻居,因为这些VPS都是用虚拟化技术在同一台Dedicated Server上切出来的,你永远不会知道你的邻居在干什么,所以VPS的硬盘性能注定不会稳定,即使现在的VPS跑分很好看,可能明天就不行了。

[root@ ~]# wget -qO- bench.sh | bash
----------------------------------------------------------------------
CPU model : AMD EPYC 7501 32-Core Processor
Number of cores : 2
CPU frequency : 2000.002 MHz
Total size of Disk : 79.0 GB (12.0 GB Used)
Total amount of Mem : 3789 MB (791 MB Used)
Total amount of Swap : 511 MB (17 MB Used)
System uptime : 61 days, 15 hour 3 min
Load average : 0.16, 0.18, 0.15
OS : CentOS 7.7.1908
Arch : x86_64 (64 Bit)
Kernel : 3.10.0-957.el7.x86_64
----------------------------------------------------------------------
I/O speed(1st run) : 9.4 MB/s
I/O speed(2nd run) : 47.0 MB/s
I/O speed(3rd run) : 377 MB/s
Average I/O speed : 144.5 MB/s
----------------------------------------------------------------------
Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 109MB/s
Linode, Tokyo2, JP 139.162.65.37 14.4MB/s
Linode, Singapore, SG 139.162.23.4 10.3MB/s
Linode, London, UK 176.58.107.39 33.3MB/s
Linode, Frankfurt, DE 139.162.130.8 28.9MB/s
Linode, Fremont, CA 50.116.14.9 34.0MB/s
Softlayer, Dallas, TX 173.192.68.18 42.8MB/s
Softlayer, Seattle, WA 67.228.112.250 30.7MB/s
Softlayer, Frankfurt, DE 159.122.69.4 12.1MB/s
Softlayer, Singapore, SG 119.81.28.170 7.88MB/s
Softlayer, HongKong, CN 119.81.130.170 8.74MB/s
----------------------------------------------------------------------

而且普通的linode套餐CPU可能也是共享的,如下图所示,linode推出了Dedicated CPU instances的套餐,按照我的理解,这个套餐的意思应该是CPU独享,但是SSD仍然是共享的,可以看出来,这个价格已经很不划算了,不如自己买独立服务器切小鸡。

服务器driver类型 对网站 I/O的影响

在hostloc看到了这一段讨论,感觉很不错,记录下来

I/O响应快慢和硬盘读写速度关系不大,就类似于延迟和带宽的差距。
I/O响应快慢取决于硬盘类型,同等RAID情况下,SSD普遍好于HDD。
主要HDD机械硬盘磁头定位一类物理耗时要长,I/O响应快会加快网站速度。
至于硬盘读写速度,主要影响的是网站负载能力。
比如1个用户以5MB/s的速度下载一张图片,那他占用的硬盘独写就是5MB/s。
如果10个用户以相同速度下载一张图片,那他们就会占用50MB/s。
如果读写峰值是100MB/s,100个人下载,那带宽再大他们每人下载速度也只有1MB/s。
主机商限制I/O主要是为了公平分配硬盘占用。
比如SSD最大读写速度是2000MB/s,限制到100MB/s就能保证至少20个用户同时使用。
一般个人网站并发读写根本不会超过50MB/s。

正解,需要指出的是,SSD的IO可以叠加计算,而HDD的话,峰值100MB/S,10个人同时干,是达不到10M/S的,有5M/S就不错了,100个人干的话就是几十KB的级别了。HDD对多线程支持非常差劲,HDD在RAID情况下略好,不过仍旧完败于SSD。

ESXi 独服切小鸡成功了

写上一篇博客时,我的独服用ESXi切小鸡网络总是连不上,后来改用PVE就很顺利连上了,后来思考了一下,感觉ESXi可能也不用设置什么网络的,直接桥接母鸡的网卡就OK了,今天测试了一下果然成功了。安装完ESXi以后不用设置任何网络设置,直接创建虚拟机,使用默认的VM network即可,如果安装的是windows,虚拟机创建完以后在控制面板里面设置一下静态ip就可以联网了,如果是ubuntu等Linux,需要在安装系统的时候设置静态ip。

顺便贴一下dedicated.com切出来的小鸡的benchmark

----------------------------------------------------------------------
CPU model : Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Number of cores : 2
CPU frequency : 3599.997 MHz
Total size of Disk : 49.1 GB (7.0 GB Used)
Total amount of Mem : 3945 MB (1815 MB Used)
Total amount of Swap : 3944 MB (0 MB Used)
System uptime : 0 days, 0 hour 10 min
Load average : 1.63, 0.89, 0.38
OS : Ubuntu 18.04.4 LTS
Arch : x86_64 (64 Bit)
Kernel : 4.15.0-91-generic
----------------------------------------------------------------------
I/O speed(1st run) : 233 MB/s
I/O speed(2nd run) : 249 MB/s
I/O speed(3rd run) : 245 MB/s
Average I/O speed : 242.3 MB/s
----------------------------------------------------------------------
Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 93.0MB/s
Linode, Tokyo2, JP 139.162.65.37 12.7MB/s
Linode, Singapore, SG 139.162.23.4 5.70MB/s
Linode, London, UK 176.58.107.39 9.61MB/s
Linode, Frankfurt, DE 139.162.130.8 8.26MB/s
Linode, Fremont, CA 50.116.14.9 78.0MB/s
Softlayer, Dallas, TX 173.192.68.18 67.4MB/s
Softlayer, Seattle, WA 67.228.112.250 77.4MB/s
Softlayer, Frankfurt, DE 159.122.69.4 5.27MB/s
Softlayer, Singapore, SG 119.81.28.170 13.0MB/s
Softlayer, HongKong, CN 119.81.130.170 15.4MB/s
----------------------------------------------------------------------

这款独服用的SSD是三星850PRO,可以看的出来,开出来的小鸡的SSD I/O比母鸡差了一点

ESXi 从入门到放弃

最近几天折腾ESXi一直失败搞得我很沮丧,ESXi的网络配置对于我而言太复杂了,而且ESXi有不少坑,比如ssh被攻击次数太多的话就无法登录了,必须要设置防火墙

今天晚上试用了一下Proxmox VE,一切都变得美好起来,太简单太顺利了,成功的开好了windows小鸡和ubuntu小鸡,而且网络配置没有任何问题,小鸡直接桥接母鸡然后设置一下static ip就OK,太愉快了

说回来我的计算机网络知识差不多都忘记了,趁着这次机会再补习一下

被IPMI的Java .jnlp 搞得快要爆炸了

买了一个dedicated.com的辣鸡服务器练练手,本来打算学习esxi,结果他妈的连服务器都连不上,我操了,FUCK了,java真是地球上最辣鸡的语言了,安装了N个版本java都提示出错,FUCK!!!看来我搞独服没什么天分,还是老老实实玩vps吧。

—————20200322update———————-

经过和dedicated.com的多次ticket交流,发现在ACLs里面添加ip白名单即可解决问题

pivo.com/dynu.com 4 GB KVM NVMe benchmark

pivo.com是一家based凤凰城的IDC,似乎提供一些便宜的服务器和VPS,在webhostingtalk上面看到他们发的NVME SSD KVM VPS广告,买了一个7USD/Mo的小鸡测试一下
----------------------------------------------------------------------
CPU model : QEMU Virtual CPU version 2.5+
Number of cores : 2
CPU frequency : 2899.998 MHz
Total size of Disk : 40.2 GB (1.0 GB Used)
Total amount of Mem : 3946 MB (56 MB Used)
Total amount of Swap : 0 MB (0 MB Used)
System uptime : 0 days, 0 hour 0 min
Load average : 0.91, 0.24, 0.08
OS : Debian GNU/Linux 10
Arch : x86_64 (64 Bit)
Kernel : 4.19.0-5-amd64
----------------------------------------------------------------------
I/O speed(1st run) : 159 MB/s
I/O speed(2nd run) : 174 MB/s
I/O speed(3rd run) : 166 MB/s
Average I/O speed : 166.3 MB/s
----------------------------------------------------------------------
Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 91.2MB/s
Linode, Tokyo2, JP 139.162.65.37 14.4MB/s
Linode, Singapore, SG 139.162.23.4 9.90MB/s
Linode, London, UK 176.58.107.39 12.6MB/s
Linode, Frankfurt, DE 139.162.130.8 12.0MB/s
Linode, Fremont, CA 50.116.14.9 72.5MB/s
Softlayer, Dallas, TX 173.192.68.18 61.0MB/s
Softlayer, Seattle, WA 67.228.112.250 28.6MB/s
Softlayer, Frankfurt, DE 159.122.69.4 7.94MB/s
Softlayer, Singapore, SG 119.81.28.170 7.98MB/s
Softlayer, HongKong, CN 119.81.130.170 7.83MB/s
----------------------------------------------------------------------

可以看的出来这个NVME SSD速度实在是太慢了,简直就是辣鸡机械硬盘的速度,似乎是被主机商限制了速度。 发了TK要求退款了,也不知道能不能退。以后再也不买便宜货了!
————————–update——————————————-
很爽快的给我退款了,看来信誉还是可以的

dedicated.com(USDedicated) E3-1271v3 Benchmark

E3-1271v3 | 32GB – 1 x 256GB SSD, 1 x 1TB HDD 59.99USD

[root@example ~]# wget -qO- bench.sh | bash
----------------------------------------------------------------------
CPU model : Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Number of cores : 8
CPU frequency : 799.804 MHz
Total size of Disk : 902.2 GB (1.5 GB Used)
Total amount of Mem : 31970 MB (333 MB Used)
Total amount of Swap : 16127 MB (0 MB Used)
System uptime : 0 days, 0 hour 9 min
Load average : 0.08, 0.06, 0.05
OS : CentOS 7.7.1908
Arch : x86_64 (64 Bit)
Kernel : 3.10.0-1062.el7.x86_64
----------------------------------------------------------------------
I/O speed(1st run) : 126 MB/s
I/O speed(2nd run) : 119 MB/s
I/O speed(3rd run) : 117 MB/s
Average I/O speed : 120.7 MB/s
----------------------------------------------------------------------
Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 100MB/s
Linode, Tokyo2, JP 139.162.65.37 7.33MB/s
Linode, Singapore, SG 139.162.23.4 4.38MB/s
Linode, London, UK 176.58.107.39 5.30MB/s
Linode, Frankfurt, DE 139.162.130.8 6.10MB/s
Linode, Fremont, CA 50.116.14.9 58.5MB/s
Softlayer, Dallas, TX 173.192.68.18 29.7MB/s
Softlayer, Seattle, WA 67.228.112.250 6.75MB/s
Softlayer, Frankfurt, DE 159.122.69.4 10.4MB/s
Softlayer, Singapore, SG 119.81.28.170 8.23MB/s
Softlayer, HongKong, CN 119.81.130.170 6.39MB/s
----------------------------------------------------------------------

[root@example ~]# hdparm -Tt /dev/sdb

/dev/sdb:
Timing cached reads: 28270 MB in 1.99 seconds = 14216.25 MB/sec
Timing buffered disk reads: 1576 MB in 3.00 seconds = 525.04 MB/sec

[root@example ~]# hdparm -Tt /dev/sda

/dev/sda:
Timing cached reads: 28998 MB in 1.99 seconds = 14585.04 MB/sec
Timing buffered disk reads: 366 MB in 3.01 seconds = 121.66 MB/sec

[root@example ~]# smartctl --all /dev/sda
smartctl 7.0 2018-12-30 r4883 [x86_64-linux-3.10.0-1062.el7.x86_64] (local build)
Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Western Digital RE4
Device Model: WDC WD1003FBYX-01Y7B2
Serial Number: WD-WCAW32342330
LU WWN Device Id: 5 0014ee 2060100ce
Firmware Version: 01.01V03
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Sector Size: 512 bytes logical/physical
Rotation Rate: 7200 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 3.0, 3.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Wed Mar 18 18:46:52 2020 PDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (16380) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 161) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x303f) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 186 175 021 Pre-fail Always - 3658
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 15
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0
9 Power_On_Hours 0x0032 081 081 000 Old_age Always - 13875
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 15
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 14
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 10
194 Temperature_Celsius 0x0022 116 107 000 Old_age Always - 31
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

[root@example ~]# smartctl --all /dev/sdb
smartctl 7.0 2018-12-30 r4883 [x86_64-linux-3.10.0-1062.el7.x86_64] (local build)
Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Samsung based SSDs
Device Model: Samsung SSD 850 PRO 256GB
Serial Number: S251NXAG632841Y
LU WWN Device Id: 5 002538 840031d94
Firmware Version: EXM02B6Q
User Capacity: 256,060,514,304 bytes [256 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4c
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Wed Mar 18 18:47:37 2020 PDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 0) seconds.
Offline data collection
capabilities: (0x53) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 136) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
9 Power_On_Hours 0x0032 088 088 000 Old_age Always - 57773
12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 24
177 Wear_Leveling_Count 0x0013 076 001 000 Pre-fail Always - 1403
179 Used_Rsvd_Blk_Cnt_Tot 0x0013 100 100 010 Pre-fail Always - 0
181 Program_Fail_Cnt_Total 0x0032 100 100 010 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 100 100 010 Old_age Always - 0
183 Runtime_Bad_Block 0x0013 100 100 010 Pre-fail Always - 0
187 Uncorrectable_Error_Cnt 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0032 071 059 000 Old_age Always - 29
195 ECC_Error_Rate 0x001a 200 200 000 Old_age Always - 0
199 CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
235 POR_Recovery_Count 0x0012 099 099 000 Old_age Always - 21
241 Total_LBAs_Written 0x0032 099 099 000 Old_age Always - 156207874943

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

不知道为啥没有media_wearout_indicator 这个参数,这个SSD通电时间57773小时了,简直是辣鸡啊,应该不会再续费了

OracleCloud Free Instance Benchmark

----------------------------------------------------------------------
CPU model : AMD EPYC 7551 32-Core Processor
Number of cores : 2
CPU frequency : 1996.243 MHz
Total size of Disk : 45.3 GB (6.4 GB Used)
Total amount of Mem : 981 MB (461 MB Used)
Total amount of Swap : 1023 MB (64 MB Used)
System uptime : 0 days, 2 hour 48 min
Load average : 0.07, 0.07, 0.11
OS : Ubuntu 18.04.3 LTS
Arch : x86_64 (64 Bit)
Kernel : 4.15.0-1033-oracle
----------------------------------------------------------------------
I/O speed(1st run) : 53.2 MB/s
I/O speed(2nd run) : 49.7 MB/s
I/O speed(3rd run) : 50.2 MB/s
Average I/O speed : 51.0 MB/s
----------------------------------------------------------------------
Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 5.54MB/s
Linode, Tokyo2, JP 139.162.65.37 3.58MB/s
Linode, Singapore, SG 139.162.23.4 2.86MB/s
Linode, London, UK 176.58.107.39 3.60MB/s
Linode, Frankfurt, DE 139.162.130.8 4.50MB/s
Linode, Fremont, CA 50.116.14.9 5.68MB/s
Softlayer, Dallas, TX 173.192.68.18 3.77MB/s
Softlayer, Seattle, WA 67.228.112.250 4.38MB/s
Softlayer, Frankfurt, DE 159.122.69.4 3.51MB/s
Softlayer, Singapore, SG 119.81.28.170 4.27MB/s
Softlayer, HongKong, CN 119.81.130.170 4.47MB/s
----------------------------------------------------------------------

可以看的出来各方面都很差,免费的还要什么自行车,这种免费小鸡只适合用来放个个人博客什么的

vultr NJ/Atlanta US$20/month Plan benchmark

1. NJ
----------------------------------------------------------------------
CPU model : Intel Xeon Processor (Skylake, IBRS)
Number of cores : 2
CPU frequency : 2593.902 MHz
Total size of Disk : 79.0 GB (1.6 GB Used)
Total amount of Mem : 3789 MB (118 MB Used)
Total amount of Swap : 0 MB (0 MB Used)
System uptime : 0 days, 7 hour 26 min
Load average : 0.07, 0.03, 0.04
OS : CentOS 7.7.1908
Arch : x86_64 (64 Bit)
Kernel : 3.10.0-1062.12.1.el7.x86_64
----------------------------------------------------------------------
I/O speed(1st run) : 54.1 MB/s
I/O speed(2nd run) : 424 MB/s
I/O speed(3rd run) : 463 MB/s
Average I/O speed : 313.7 MB/s
----------------------------------------------------------------------
Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 195MB/s
Linode, Tokyo2, JP 139.162.65.37 15.9MB/s
Linode, Singapore, SG 139.162.23.4 11.1MB/s
Linode, London, UK 176.58.107.39 31.9MB/s
Linode, Frankfurt, DE 139.162.130.8 26.9MB/s
Linode, Fremont, CA 50.116.14.9 31.0MB/s
Softlayer, Dallas, TX 173.192.68.18 23.4MB/s
Softlayer, Seattle, WA 67.228.112.250 29.7MB/s
Softlayer, Frankfurt, DE 159.122.69.4 11.8MB/s
Softlayer, Singapore, SG 119.81.28.170 8.31MB/s
Softlayer, HongKong, CN 119.81.130.170 7.80MB/s
----------------------------------------------------------------------

2. Atlanta
----------------------------------------------------------------------
CPU model : Intel Xeon Processor (Cascadelake)
Number of cores : 2
CPU frequency : 2893.202 MHz
Total size of Disk : 79.0 GB (1.4 GB Used)
Total amount of Mem : 3789 MB (117 MB Used)
Total amount of Swap : 0 MB (0 MB Used)
System uptime : 0 days, 0 hour 1 min
Load average : 0.22, 0.11, 0.04
OS : CentOS 7.7.1908
Arch : x86_64 (64 Bit)
Kernel : 3.10.0-1062.12.1.el7.x86_64
----------------------------------------------------------------------
I/O speed(1st run) : 1.0 GB/s
I/O speed(2nd run) : 1.3 GB/s
I/O speed(3rd run) : 1.1 GB/s
Average I/O speed : 1160.5 MB/s
----------------------------------------------------------------------
Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 165MB/s
Linode, Tokyo2, JP 139.162.65.37 13.8MB/s
Linode, Singapore, SG 139.162.23.4 9.09MB/s
Linode, London, UK 176.58.107.39 23.3MB/s
Linode, Frankfurt, DE 139.162.130.8 22.0MB/s
Linode, Fremont, CA 50.116.14.9 34.6MB/s
Softlayer, Dallas, TX 173.192.68.18 41.8MB/s
Softlayer, Seattle, WA 67.228.112.250 20.1MB/s
Softlayer, Frankfurt, DE 159.122.69.4 9.50MB/s
Softlayer, Singapore, SG 119.81.28.170 5.68MB/s
Softlayer, HongKong, CN 119.81.130.170 7.10MB/s
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可以看的出来NJ机房还是用比较旧的CPU,硬盘应该还是SATA接口的SSD,而且似乎这个实例的邻居比较折腾,所以第一次硬盘I/O测速只有54.1 MB/s
而Atlanta机房用上了比较新的CPU,硬盘应该也换上了NVME SSD,配置比NJ机房好很多,但是网络似乎比NJ机房差一点

另外,Vultr好像不隐藏CPU型号了!以前都是隐藏的

Krypt ION Los Angeles benchmark

又修复了,回到了CN2,不过ION不能退款比较坑
----------------------update------------------------------------------------
traceroute 去程是59.43.*.* 回程是219.158.*.*,翻车了,不推荐购买。
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都说ION很好,我也买一个试试,不过买到的貌似不是CN2-GIA而是 CN2-GT,不过ION官方似乎没有承诺GIA,这个好像是看运气的,感觉就算运气好买到了GIA后期也可能改路由,这里就不折腾了。下面是10USD/M的一个Los Angeles小鸡
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CPU model : Intel(R) Xeon(R) CPU E5-2690 v3 @ 2.60GHz
Number of cores : 1
CPU frequency : 2599.996 MHz
Total size of Disk : 49.2 GB (2.6 GB Used)
Total amount of Mem : 1993 MB (97 MB Used)
Total amount of Swap : 1023 MB (0 MB Used)
System uptime : 0 days, 0 hour 17 min
Load average : 0.00, 0.00, 0.00
OS : Ubuntu 18.04.3 LTS
Arch : x86_64 (64 Bit)
Kernel : 4.15.0-72-generic
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I/O speed(1st run) : 200 MB/s
I/O speed(2nd run) : 283 MB/s
I/O speed(3rd run) : 280 MB/s
Average I/O speed : 254.3 MB/s
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Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 98.3MB/s
Linode, Tokyo2, JP 139.162.65.37 21.7MB/s
Linode, Singapore, SG 139.162.23.4 10.1MB/s
Linode, London, UK 176.58.107.39 15.6MB/s
Linode, Frankfurt, DE 139.162.130.8 7.80MB/s
Linode, Fremont, CA 50.116.14.9 158MB/s
Softlayer, Dallas, TX 173.192.68.18 63.4MB/s
Softlayer, Seattle, WA 67.228.112.250 76.2MB/s
Softlayer, Frankfurt, DE 159.122.69.4 8.97MB/s
Softlayer, Singapore, SG 119.81.28.170 9.96MB/s
Softlayer, HongKong, CN 119.81.130.170 13.0MB/s
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可以看得出来网络很不错,CPU也没啥问题,但是硬盘I/O比较差