Re: [opensuse] I need more ram, but I can't. - replacing the laptop hard disk with an SSD first.

On 2017-09-18 18:28, Greg Freemyer wrote:

On Mon, Sep 18, 2017 at 9:56 AM, Patrick Shanahan wrote:

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* Carlos E. R. [09-18-17 09:49]:

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On 2017-09-18 15:39, Patrick Shanahan wrote:

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* Carlos E. R. [09-18-17 09:24]:

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Hi,

I need more ram than my 8GiB, but my board doesn't allow it. I use swap, but Leap is very slow when swapping; I have the feeling that it is slower than other releases.

So I wonder if there is some type of small hard disk that can be used for fast swap. SSD? Would it wear out? SSD is typically slow at writing.

ssd would be much faster for swap than revolving rust.

But often not for write, and has a limited number of ops.

I have a machine with an SSD for main disk and feels slow.

Is this a desktop? If so, for ~$20 you can buy a NVMe SSD controller card. It fits into a PCIe slot. (Assuming you have an empty slot).

NVMe SSDs scream. Mine benchmarks above 1.5 GB/sec. (That's B for Bytes, not b for bits). I have openSUSE 42.2 running on it. But I have plenty of RAM, so I don't think the PC ever swaps.

Not as fast as RAM, but 10x the speed of rotating drives even if you ignore seek times.

I have 2 of the NVMe SSDs. One was way expensive (2 TB).

But the Samsung PM951 128GB is under $100.

I think I will start by "improving" my laptop. It has one 500 GB (not GiB) hard disk, dual boot, so I need one of same size or larger. But not much larger because of price. My almost local shop has these - what do you think, any quick "not that one!"? Something you know I should know? I think I might go for the first one on the list, I can afford that price, I think. They are expensive! Crucial MX300 SSD 525GB 150,95€ **** maybe this one random write 92k / 83k IOPS secuencial write: 510 MB/s Samsung 850 Evo SSD Series 500GB SATA3 154,95€ 90,000 IOPS(500GB) 520 MB/s sec write. WD Blue SSD 500GB SATA3 154,59€ (IOPS) 80000 (MB/s) 525 Samsung 850 Pro SSD Series 512GB 245,95€ (4KB) 36000 IOPS 520 MB/s Crucial MX300 SSD 1050GB 283€ IOPS up to 83k 510 MB/s Kingston SSDNow KC400 512GB SATA3 205,59€ SanDisk Extreme PRO SSD 960GB 399€ *** Not this one. Samsung PM871A SSD 512GB SATA3 OEM 182,59€ OEM? 88 KIOPS 515 MB/s SanDisk Ultra II SSD 960GB SATA3 299,59€ -- Cheers / Saludos, Carlos E. R. (from 42.2 x86_64 "Malachite" at Telcontar)