Linode com discos NVMe?

[Catingueiro]

Instalei uma nova instancia na linode e fazendo teste de velocidade do HD veio a surpresa na alta velocidade, aparentemente a instancia está com discos NVMe.

Resultado do teste:

[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.44999 s, 741 MB/s
[root@srv ~]# clear
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.18856 s, 903 MB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.10089 s, 975 MB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.02076 s, 1.1 GB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.11608 s, 962 MB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.04745 s, 1.0 GB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.05327 s, 1.0 GB/s
 

[Victor Sousa PI]

porque está em cache, altera o CONV do comando,discos NVME em Cloud que cheguei a ver em testes passar dos 1GB/s  sem cache é  a VULTR.

[Jorge Marcelino]

SSD NVMe passa de 1GB/s tranquilo, sem cache.

[Catingueiro]

Teste com  "hdparm":

[root@li1145-165 ~]# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   13910 MB in  2.00 seconds = 6968.29 MB/sec
 Timing buffered disk reads: 3490 MB in  3.00 seconds = 1163.15 MB/sec
[root@li1145-165 ~]# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   12702 MB in  2.00 seconds = 6363.15 MB/sec
 Timing buffered disk reads: 6008 MB in  3.00 seconds = 2001.79 MB/sec
[root@li1145-165 ~]# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   11546 MB in  2.00 seconds = 5780.28 MB/sec
 Timing buffered disk reads: 6096 MB in  3.00 seconds = 2031.48 MB/sec
[root@li1145-165 ~]# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   7660 MB in  2.00 seconds = 3833.08 MB/sec
 Timing buffered disk reads: 5912 MB in  3.00 seconds = 1969.93 MB/sec
 

[Victor Sousa PI]

6 minutos atrás, Catingueiro disse:

Teste com  "hdparm":

[root@li1145-165 ~]# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   13910 MB in  2.00 seconds = 6968.29 MB/sec
 Timing buffered disk reads: 3490 MB in  3.00 seconds = 1163.15 MB/sec
[root@li1145-165 ~]# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   12702 MB in  2.00 seconds = 6363.15 MB/sec
 Timing buffered disk reads: 6008 MB in  3.00 seconds = 2001.79 MB/sec
[root@li1145-165 ~]# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   11546 MB in  2.00 seconds = 5780.28 MB/sec
 Timing buffered disk reads: 6096 MB in  3.00 seconds = 2031.48 MB/sec
[root@li1145-165 ~]# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   7660 MB in  2.00 seconds = 3833.08 MB/sec
 Timing buffered disk reads: 5912 MB in  3.00 seconds = 1969.93 MB/sec
 

parece que eles mudaram então os discos rsrs

[Julianodls]

11 horas atrás, Catingueiro disse:

Instalei uma nova instancia na linode e fazendo teste de velocidade do HD veio a surpresa na alta velocidade, aparentemente a instancia está com discos NVMe.

Resultado do teste:

[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.44999 s, 741 MB/s
[root@srv ~]# clear
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.18856 s, 903 MB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.10089 s, 975 MB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.02076 s, 1.1 GB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.11608 s, 962 MB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.04745 s, 1.0 GB/s
[root@srv ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.05327 s, 1.0 GB/s
 

Você contratou plano deles VPS ? vou efetuar o teste também eu desejo trocar servidores meu para este NVMe então quero efetuar o teste vi muito pessoal falar bem rsrsrs.

[Catingueiro]

5 minutos atrás, Julianodls disse:

Você contratou plano deles VPS ? vou efetuar o teste também eu desejo trocar servidores meu para este NVMe então quero efetuar o teste vi muito pessoal falar bem rsrsrs.

Sim, contratei o plano "STANDARD LINODES".

[Julianodls]

1 hora atrás, Catingueiro disse:

Sim, contratei o plano "STANDARD LINODES".

[root@li208-60 ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 60.4942 s, 17.7 MB/s
[root@li208-60 ~]# 

Qual localização você contratou ?

[Catingueiro]

10 horas atrás, Julianodls disse:

[root@li208-60 ~]# dd if=/dev/zero of=test_$$ bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 60.4942 s, 17.7 MB/s
[root@li208-60 ~]# 

Qual localização você contratou ?

Dallas!