Wow - lue looks pretty cool.

I haven’t used sar in over 10 years. I used to use it to monitor resource usage of jobs that I was running while I was at work. Now that I look back, I was using isag (no longer maintained) to generate reports for me.

I would think it should be possible to package ksar in an appimage or docker container - but I don’t know if one exists.

But - there is a newer option:

sadf -g your_datafile [ – sar_options ] > output.svg

This is part of the sysstat package - no need to install anything else, and no java. sadf allows you to make graphs that you can view in your browser. Check the man file for sadf for more information. (Can’t comment any further on this since I haven’t used it.)

Forgot to mention, there are ways to build reports from the sar output - which would give you a chance to filter the logs.

https://www.cyberciti.biz/tips/identifying-linux-bottlenecks-sar-graphs-with-ksar.html

Ahh - yes - I haven’t looked at this for a long time – the sysstat and ksar packages.

Sar is the old school way to keep a rolling log of used resources:

https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/introduction_to_system_administration/s3-resource-tools-sar-sar

https://www.networkworld.com/article/969982/checking-linux-system-performance-with-sar.html

I watched her video earlier (watch almost all of her videos), and I was impressed by the things that she’s gathered.

I couldn’t believe I had forgotten about TLDP.

I think it’s something that you have to get used to… While it’s compiling stuff, you can actually be doing other things on your system. The trick was to make sure your configuration balanced your systems resources so you didn’t get bottlenecks. (For example: putting your home drive on a separate physical drive to reduce issues with writes.)

Hmm - my Gentoo install was usable, but I did get tired of all the compiling for updates. Still kind of get annoyed with it now when I have to install source packages from the AUR.

I read a lot of the LFS manual, that’s what made me decide to give Gentoo a go. Seemed like an slightly easier route while still working through a lot of the build process.

Yeah - Slackware back in the late 90s early 2K’s wasn’t as niche… Remember the Infomagic CD sets?

Gentoo got traction for a while when they made it easier to install, instead of having to go from Stage 0. Of course, I installed it from Stage 0 since I wanted to know more about the tool chain and how these systems were built – but I wasn’t masochistic enough to try to install LFS.

Even niche distros like Slackware, Gentoo,

Ooof - I’m feeling old when these are considered “niche” distros…

FWIW - I’m not arguing about any of this… I’m just expounding on my thought process.

There were a lot of business class systems in the mix they were working on… I saw a bunch of Dell Optiplex, and HP Workstations in there… I think that was from either (a) some businesses / schools donating them, or (b) after market recyclers donating the ones they couldn’t get working and didn’t want to spend time on.

No matter what, however, the bottom line is that a high percentage of these systems will be given new life – and that’s what counts.

Moore’s law was about the technology – but I am talking about the application of the technology. It was unusual for most businesses to base their purchasing / refreshing decisions around the idea that the technology would be good for 2-3 Moore’s law cycles. This was especially true back in the days of Mainframes and later “Mini” computers (shrunk down versions of Mainframes – not Mini PC’s) where companies like DEC and IBM went to great lengths to ensure that upgrading to a newer system didn’t impact other operations in a business.

Most of this carried on with Vax and Unix Systems (like Sun workstations, SGI, etc.) in the same lifecycle.

When PC’s started coming into the business world, the thought was that they would fit that same lifecycle – and many of them did. This set the mark for early PC’s when IBM brought them to the consumer market. The IBM PC was, after all, the consumer version of a business computer.

Apple, Commodore, TI, Atari, et al. were a bit different – coming at things more from the entertainment, education, and hobby side of things.

I see what Steve is doing here is attempting to push things back towards the business lifecycle, and with good reason: it’s better for the planet if fewer machines are abandoned due to the arbitrary whims of some marketer’s concept of profitability.

Businesses tend to stick to a 3-5 year life-cycle. But I’ve gotten the feeling that even there they are cycling things through a bit more rapidly… It’s just that they tend to do it in waves so it’s not quite as noticable, or as big an impact to the budgets.

The rule that use to be the guide was that technology turned over 5-7 years (IIRC). These days, it seems that these companies are working hard to make it three years or less (look at Apple & Google releasing new phones every year or two).

Great to see Steve and the rest of the Gamers Nexus crew supporting the reuse of computers that shouldn’t be out of commission.

Meant to comment on this earlier… I’m implementing an LVM cache – which is filesystem / device level caching. Having a failure with something at this level could mean corrupting a 42TB storage device. This would be a far cry from losing an application level set of cache files…

That’s why I am being a lot more cautious about this drive. A failure here could be non-recoverable.

Yeah, I’m quite aware of a lot of the junk on Amazon – and I normally would stick to a well known brand like Samsung, WD, or Crucial… But there were no listings for m.2 SSD’s in the 32-64G range. At first I ordered a “Kingdata” drive (an obvious play on Kingston), but later I saw a listing for a drive from Transcend – which I recalled from my IT days, and a quick check of their website confirmed they were the company I was thinking of.

So, this is why I am fairly certain that this is some kind of labeling / packaging mistake. Transcend is reasonably well-known, and afaik aren’t scammers.

And, to top it off, I ran some additional tests on the drive… And for what it is, it is performing exactly how I would have expected: 420MB/s read/write, with 0.1msec access times – with extreme consistency. (Given that this is installed on a PCIE adapter that only has 1 lane available.)

Okay - wild… The results of f3probe:

Good news: The device `/dev/sda’ is the real thing

Device geometry: Usable size: 931.51 GB (1953525168 blocks) Announced size: 931.51 GB (1953525168 blocks) Module: 1.00 TB (2^40 Bytes) Approximate cache size: 0.00 Byte (0 blocks), need-reset=no Physical block size: 512.00 Byte (2^9 Bytes)

Probe time: 16.12s

Oops - misstated something before. This is an MLC NAND drive, the cache is supposed to be DDR4 DRAM. I suspect, however, this is a mis-labeled drive…

I agree - I wouldn’t trust it either…and, surprisingly, this one came from Amazon, and not some fly-by-night AliExpress store. (I rarely purchase something there without seeing reviews first…

But the other thing about this is that I checked out the website for the product. They are a company that specializes in enterprise and embedded products. I was pretty certain I had heard of them before in the enterprise world, which is why I purchased the drive.

The reason I bought this drive was because it specifies having a NAND cache on it (MLC, but beggars can’t be choosers with drives like this), whereas the others I looked at didn’t have (or at list didn’t have specs which listed having) any form of NAND caching.

@nao@sh.itjust.works - thanks f or the pointer to f3 – I’ll grab it and check the drive before I return it.

Just what nobody wanted in their eReading software.

The one, the only, the legend…

Mine’s best for me:I get it set up the way I want, the updates are frequent but not too frequent, and it has all the packages I need.

My choice isn’t necessarily (or even likely) the best for everyone. There’s a lot to consider when selecting (or recommneding) a distribution. It’s not a one-size-fits-all scenario.