Jing'an vps review, take a quick look

We originally used Yecao Cloud's Hong Kong cloud computer room. However, recently, the cloud computer room has been causing trouble frequently. We had no choice but to consider moving. It happened that three major manufacturers in mainland China were engaged in activities, and Alibaba Cloud needed to register for access to Taipei Cloud. Trouble, give up. Tencent can only buy it for one year, so give up. Jing'an is the only one left, so I have to choose him.

Due to work, I asked a friend to buy it on my behalf. After many twists and turns, I finally got it. Before officially moving, let me do a brief evaluation.

Looking at the CPU first, we can see that the I3 cache is not turned on, which is not as good as Alibaba Cloud.

lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order:                                           Little Endian
CPU(s):           1
On-line CPU(s) list: 0
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 1
NUMA node(s): 1
Vendor ID:               GenuineIntel
CPU family: 6
Model:                 60
Model name: Intel Core Processor (Haswell)
Stepping:         1
CPU MHz: 2399.996
BogoMIPS: 4799.99
Hypervisor vendor: KVM
Virtualization type: full
L1d cache: 32K
L1i cache: 32K
L2 cache: 4096K
NUMA node0 CPU(s): 0

cat /proc/cpuinfo
processor: 0
vendor_id : GenuineIntel
cpu family: 6
model: 60
model name: Intel Core Processor (Haswell)
stepping : 1
microcode: 1
cpu MHz: 2399.996
cache size: 4096 KB
physical id: 0
siblings : 1
core id: 0
cpu cores: 1
apicid: 0
initial API: 0
fpu: yes
fpu_exception: yes
cpuid level: 13
wp: yes
flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc up rep_good unfair_spinlock pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_ 2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm xsaveopt fsgsbase bmi1 avx2 smep bmi2 erms invpcid
bogomips : 4799.99
clflush size : 64
cache_alignment: 64
address sizes: 40 bits physical, 48 bits virtual
power management:

There are no surprises in the CPU, so let’s look at the hard drive. By the way, is this an SSD? super slow disk? !
Or is our testing posture wrong?
dd if=/dev/zero of=test bs=64k count=16k oflag=dsync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 268.838 s, 4.0 MB/s
dd if=/dev/zero of=test bs=64k count=16k oflag=dsync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 276.482 s, 3.9 MB/s

With good wishes, take a look at the memory information

cat /proc/meminfo
MemTotal: 1020012 kB
MemFree: 68400 kB
Buffers: 87168 kB
Cached: 747240 kB
SwapCached: 0 kB
Active: 81264 kB
Inactive: 764168 kB
Active(anon): 4428 kB
Inactive(anon): 6788 kB
Active(file): 76836 kB
Inactive(file): 757380 kB
Unevictable: 0 kB
Mlocked:             0 kB
SwapTotal: 4063228 kB
SwapFree: 4063228 kB
Dirty:               0 kB
Writeback:           0 kB
AnonPages: 11056 kB
Mapped: 6264 kB
Shmem: 192 kB
Slab: 85880 kB
SReclaimable: 32592 kB
SUnreclaim: 53288 kB
KernelStack: 1296 kB
PageTables: 1404 kB
NFS_Unstable: 0 kB
Bounce:               0 kB
WritebackTmp: 0 kB
CommitLimit: 4573232 kB
Committed_AS: 82356 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 8108 kB
VmallocChunk: 34359717988 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 6016 kB
DirectMap2M: 1042432 kB
DirectMap1G: 0 kB

The performance of windows is not good enough, let us cry for a while first.

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