Amazon EC2 推出 AMD 版本的 C5a 主機

前幾天 AWS 宣佈了使用 AMD CPU 的 c5a 主機:「New – Amazon EC2 C5a Instances Powered By 2nd Gen AMD EPYC™ Processors」。

定價上與其他 AWS 上 AMD 的機器都類似 (m5ar5a 以及 t3a),大約都低 10% 左右:

Today, I am excited to announce the general availability of compute-optimized C5a instances featuring 2nd Gen AMD EPYC™ processors, running at frequencies up to 3.3 GHz. C5a instances are variants of Amazon EC2’s compute-optimized (C5) instance family and provide high performance processing at 10% lower cost over comparable instances.

以這兩年 AMD 在 CPU 這塊碾壓 Intel 的情況來說 (AMD YES!),目前 AMD CPU 上唯一的缺點應該是單核的時脈比較低,這在捉機上的領域裡面來說,遇到一些沒有做好多核最佳化的遊戲時 Intel 的表現會比較好,其他的情況其實都可以看出 AMD 幹爆 Intel。

如果你在 AWS 上跑的應用程式也有類似需要吃單核效能,無法充分使用多核環境時,還是可以回頭看一下 c5 系列,頻率會高一些:

C5 and C5d instances feature either the 1st or 2nd generation Intel Xeon Platinum 8000 series processor (Skylake-SP or Cascade Lake) with a sustained all core Turbo CPU clock speed of up to 3.6 GHz. The new C5 and C5d 12xlarge, 24xlarge, and metal instance sizes feature the 2nd generation Intel Xeon Scalable Processors (Cascade Lake) with a sustained all-core Turbo CPU frequency of 3.6GHz.

說到這個,Linus 前陣子在發表 5.7-rc7 的時候也說換了 AMD 的 3970x,整個處理 kernel 編譯的速度是用倍數在改善:「Linux 5.7-rc7」:

In fact, the biggest excitement this week for me was just that I upgraded my main machine, and for the first time in about 15 years, my desktop isn't Intel-based. No, I didn't switch to ARM yet, but I'm now rocking an AMD Threadripper 3970x. My 'allmodconfig' test builds are now three times faster than they used to be, which doesn't matter so much right now during the calming down period, but I will most definitely notice the upgrade during the next merge window.

回到 AWS 這邊... 目前有提供的區域來說,歐美比較大的區域都在首發清單,台灣這邊比較常用的東京還沒有看到,不過公司在用的新加坡上了:

You can launch C5a instances today in eight sizes in the US East (N. Virginia), US East (Ohio), US West (Oregon), Europe (Ireland), Europe (Frankfurt), Asia Pacific (Sydney), and Asia Pacific (Singapore) Regions in On-Demand, Spot, and Reserved Instance or as part of a Savings Plan.

如果沒有什麼特別成本壓力的人,可以等一陣子看看有沒有其他人丟效能測試出來,看看 CPU 的計算能力是不是可以無痛換過去... (這邊是相較於 ARM 那邊)

AWS 推出使用 AMD CPU 的 t3a.*

AWS 推出了 t3a.* 的 EC2 instance:「Now Available – AMD EPYC-Powered Amazon EC2 T3a Instances」。

目前開放的區域有限,但算是個開始:

You can launch T3a instances today in seven sizes in the US East (N. Virginia), US West (Oregon), Europe (Ireland), US East (Ohio), and Asia Pacific (Singapore) Regions in On-Demand, Spot, and Reserved Instance form.

價錢大約再低個 10% 左右:

Pricing is 10% lower than the equivalent existing T3 instances; see the On-Demand, Spot, and Reserved Instance pricing pages for more info.

有些超小的機器可以考慮重開的時候就順便換過去...

AWS 推出使用 AMD CPU 的 m5a 與 r5a

Amazon EC2 推出使用了 AMD Epyc 的機種,分別為 m5a.*r5a.*:「New Lower-Cost, AMD-Powered M5a and R5a EC2 Instances」。

這個系列的重點在於價位相較於 m5.*r5.* 大約低了 10% 的費用:

The newest EC2 instances are powered by custom AMD EPYC processors running at 2.5 GHz and are priced 10% lower than comparable instances.

目前開放的區域只有五區:

These instances are available now and you can start using them today in the US East (N. Virginia), US East (Ohio), US West (Oregon), Europe (Ireland), and Asia Pacific (Singapore) Regions in On-Demand, Spot, and Reserved Instance form.

然後在「Amazon EC2 Pricing」這頁已經可以看到價錢,但大概是某些非技術性的因素,可以發現沒有列出 ECU... 不過從沒有推出 c5a.* 系列大概可以猜測效能應該打不贏 c5.* 所以沒有打算推出對應的產品線?(不過也難說,等看看有沒有人測試出來吧...)

另外文章最後提到會有 t3a.* 的計畫,如果價錢會再比現在的 t3.* 低一些的話,看起來頗值得期待的:

PS – We are also working on T3a instances; stay tuned for more info!