測試 GCP 硬碟硬碟效能（同場加映 Vultr）

Photo by Kolleen Gladden

標準永久硬碟 Zonal standard PD

寫入

# hdparm -t --direct /dev/sdc

Timing O_DIRECT disk reads: 378 MB in  3.01 seconds = 125.47 MB/sec

Timing O_DIRECT disk reads: 380 MB in  3.00 seconds = 126.53 MB/sec

Timing O_DIRECT disk reads: 380 MB in  3.00 seconds = 126.66 MB/sec

讀取

# hdparm -t /dev/sdc

Timing buffered disk reads: 374 MB in  3.00 seconds = 124.54 MB/sec

Timing buffered disk reads: 380 MB in  3.01 seconds = 126.09 MB/sec

Timing buffered disk reads: 380 MB in  3.01 seconds = 126.14 MB/sec

SSD永久硬碟 Zonal SSD PD

寫入

# hdparm -t --direct /dev/sda2

Timing O_DIRECT disk reads: 738 MB in  3.00 seconds = 245.72 MB/sec

Timing O_DIRECT disk reads: 608 MB in  3.02 seconds = 201.53 MB/sec

Timing O_DIRECT disk reads: 396 MB in  3.07 seconds = 128.95 MB/sec

讀取

# hdparm -t /dev/sda2

Timing buffered disk reads: 740 MB in  3.00 seconds = 246.42 MB/sec

Timing buffered disk reads: 536 MB in  3.07 seconds = 174.81 MB/sec

Timing buffered disk reads: 164 MB in  3.01 seconds =  54.54 MB/sec

已平衡的永久硬碟 Zonal balanced PD

寫入

# hdparm -t --direct /dev/sdb

Timing O_DIRECT disk reads: 440 MB in  3.00 seconds = 146.65 MB/sec

Timing O_DIRECT disk reads: 440 MB in  3.00 seconds = 146.64 MB/sec

Timing O_DIRECT disk reads: 280 MB in  3.11 seconds =  89.89 MB/sec

讀取

# hdparm -t /dev/sdb

Timing buffered disk reads: 440 MB in  3.00 seconds = 146.52 MB/sec

Timing buffered disk reads: 440 MB in  3.00 seconds = 146.59 MB/sec

Timing buffered disk reads: 248 MB in  3.08 seconds =  80.44 MB/sec

同場加映 Vultr VPS

寫入

# hdparm -t --direct /dev/vda1

Timing O_DIRECT disk reads: 1282 MB in  3.00 seconds = 426.75 MB/sec

Timing O_DIRECT disk reads: 1302 MB in  3.00 seconds = 433.43 MB/sec

Timing O_DIRECT disk reads: 1276 MB in  3.00 seconds = 425.04 MB/sec

讀取

# hdparm -t /dev/vda1

Timing buffered disk reads: 1528 MB in  3.00 seconds = 509.13 MB/sec

Timing buffered disk reads: 1552 MB in  3.00 seconds = 517.24 MB/sec

Timing buffered disk reads: 1540 MB in  3.00 seconds = 513.00 MB/sec

Vultr 意外數據有點太漂亮

如果考慮要用便宜 VPS 的不妨考慮一下 Vultr

在台灣來說便宜又大碗的 VPS 大概就是這間跟 Linode

Linode 之前用的不是很開心

不外乎就是連外不穩（連到台灣這段），還有常常都在維護

Vultr 當然也會維護，但他維護時間大多都是台灣的半夜

如果真的追求高在線率，當然還是 GCP 為首選囉~

想要試用 Vultr 的，歡迎點我的推薦碼註冊～

測試環境：

• Platform: Google Cloud Platform
• Zone: asia-east1
• CPU: vCPU * 1 (Intel Broadwell)
• RAM: 5G
• Storage: 60G（實際使用率約 60%）
• OS: CentOS 8

GCP 測試環境說明：

「標準永久硬碟」及「已平衡的永久硬碟」都是在原有機器下個別加開 10G 的新空間測試，SSD 是主要的硬碟

Vultr VPS 測試環境：

• Cloud Compute (SSD Cloud Instances)
• Locaiton: Tokyo
• Plan: 
• CPU: 1 vCore
• RAM: 2G
• Storage: 55G SSD（實際使用率約 14%）
• OS: CentOS 8