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1. pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Sunday, 14-Jan-2024 19:25:33 JST pistolero :thispersondoesnotexist:

   • p
   @p Pictured: two new PSUs installed.
   7A380369-DDE3-4185-83C8-F32851E2D668.jpeg
   •  and † top dog :pedomustdie: like this.
   • † top dog :pedomustdie: (dcc@annihilation.social)'s status on Sunday, 14-Jan-2024 19:26:51 JST † top dog :pedomustdie:

     in reply to

     • p
     @p @p Fuck yea, what server is that?
   • † top dog :pedomustdie: (dcc@annihilation.social)'s status on Sunday, 14-Jan-2024 20:15:24 JST † top dog :pedomustdie:

     in reply to

     • p
     @p @p I see, my new main server is a power edge r720. Im looking at the price and the box it self it cheap but the cpus are more expensive.
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Sunday, 14-Jan-2024 20:15:26 JST pistolero :thispersondoesnotexist:

     in reply to

     • † top dog :pedomustdie:
     • p
     @dcc @p PowerEdge R820
   • † top dog :pedomustdie: (dcc@annihilation.social)'s status on Sunday, 14-Jan-2024 20:18:39 JST † top dog :pedomustdie:

     in reply to

     • † top dog :pedomustdie:
     • p
     @p @p Scratch that about cpu price, seems 4 cpu mode needs diffrent processors also.
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Sunday, 14-Jan-2024 20:18:52 JST pistolero :thispersondoesnotexist:

     in reply to

     • Lumeinshin 3rd impact :asukaPout:
     • p
     @Lumeinshin @p It's only drawing 336W at the moment, but if one of them blows up, it's nice to have the other one.
     † top dog :pedomustdie: likes this.
   • Lumeinshin 3rd impact :asukaPout: (lumeinshin@pleroma.skyshanty.xyz)'s status on Sunday, 14-Jan-2024 20:18:53 JST Lumeinshin 3rd impact :asukaPout:

     in reply to

     • p
     @p @p
     Jesus thats some serious power lol
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Sunday, 14-Jan-2024 20:24:52 JST pistolero :thispersondoesnotexist:

     in reply to

     • Herman_Hetherington
     • p
     @Herman_Hetherington @p :dracula: They said that they needed a stealth soldier, so I put my hands on the hibachi hot-plate at Benihana and burned my fingerprints off. They will never find me. :dracula2:
     † top dog :pedomustdie: likes this.
   • Herman_Hetherington (herman_hetherington@poa.st)'s status on Sunday, 14-Jan-2024 20:24:53 JST Herman_Hetherington

     in reply to

     • p
     @p @p Did you file your fingerprints off?
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Sunday, 14-Jan-2024 20:45:19 JST pistolero :thispersondoesnotexist:

     in reply to

     • cjd
     • † top dog :pedomustdie:
     • p
     @cjd @dcc @p
     
     > Also, congrats on getting it back up again.
     
     I'm not *that* old.
     † top dog :pedomustdie: likes this.
   • cjd (cjd@pkteerium.xyz)'s status on Sunday, 14-Jan-2024 20:45:20 JST cjd

     in reply to

     • cjd
     • † top dog :pedomustdie:
     • p
     Also, congrats on getting it back up again.
   • cjd (cjd@pkteerium.xyz)'s status on Sunday, 14-Jan-2024 20:45:21 JST cjd

     in reply to

     • † top dog :pedomustdie:
     • p
     Is it acting more stable so far ?
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Sunday, 14-Jan-2024 20:47:06 JST pistolero :thispersondoesnotexist:

     in reply to

     • † top dog :pedomustdie:
     • p
     @dcc @p Basically it was $1400 on NewEgg.
     † top dog :pedomustdie: likes this.
   • † top dog :pedomustdie: (dcc@annihilation.social)'s status on Sunday, 14-Jan-2024 20:47:20 JST † top dog :pedomustdie:

     in reply to

     • p
     @p @p How many cores and ram?
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Monday, 15-Jan-2024 07:06:12 JST pistolero :thispersondoesnotexist:

     in reply to

     • † top dog :pedomustdie:
     • p
     @dcc @p 32 cores (hyperthreading is off), 384GB RAM. Postgres gets its own 1TB NVMe, everything else is on the RAID-6'd disk array.
     † top dog :pedomustdie: likes this.
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Monday, 15-Jan-2024 07:13:34 JST pistolero :thispersondoesnotexist:

     in reply to

     • † top dog :pedomustdie:
     • :blank:
     • p
     @i @dcc @p
     
     > interesting amount of misinfo sticking around from two decades prior
     
     Arthur Whitney's microsecond trading bots still run with only one core enabled, and there was another hyperthreading security problem last year or the year before.
     
     Because the box was flaky, I abandoned plans to sell hosting. This turned out to be a good thing: the benefit of the VMs all being operated by either me or people that I know personally is that I don't have to worry so much about anyone trying to do something shady to compromise the box. So most of those problems don't apply.
     
     But what I do have is measurement, right, like I can see that it rarely maxes out any of the cores. It is at least not slower without hyperthreading, because there are idle cores and most of the cores don't even approach 100%. And there's the statistic, right, 90% of the time is spent on SpecEx while waiting for the memory bus, and even if I only half-believe it, I can measure. (Also I have a lot of thoughts on the size of icache and mostly isolated tests around them.)
     
     I am interested in your thoughts on this. Don't take this the wrong way, but "misinfo sticking around" seems like you are curious whether my thoughts are wrong or not, which is an evaluation of a thing: I'm more interested in what your thoughts are, that's the thing and the evaluation of the thing is a degree removed.
   • :blank: (i@declin.eu)'s status on Monday, 15-Jan-2024 07:13:35 JST :blank:

     in reply to

     • † top dog :pedomustdie:
     • p
     @p @dcc @p fair enough on a box with 4 sockets, there's just an interesting amount of misinfo sticking around from two decades prior
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Monday, 15-Jan-2024 07:13:36 JST pistolero :thispersondoesnotexist:

     in reply to

     • † top dog :pedomustdie:
     • :blank:
     • p
     @i @dcc @p
     
     > why tho,
     
     Contention for the memory bus is the biggest performance hit on $current_year CPUs and aside from that, the biggest performance bottlenecks for Pleroma are, in order, disk I/O and network I/O. The CPUs on the box mostly sit idle, meaning that more hardware threads wouldn't accomplish anything but heating the machine up.
     
     I suspect that it's faster with less NUMA-wrangling, but have not benchmarked it. I just know that on this workload, I could probably disable half the physical cores and still have no trouble.
     
     > plan9'tism?
     
     I don't know what that'd have to do with a hardware feature on a machine that runs Linux and a handful of VMs.
     until_the_cores_are_all_saturated_there_is_no_use_having_more_of_them.png
   • :blank: (i@declin.eu)'s status on Monday, 15-Jan-2024 07:13:37 JST :blank:

     in reply to

     • † top dog :pedomustdie:
     • p
     @p @dcc @p >hyperthreading is off
     
     why tho, plan9'tism?
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Monday, 15-Jan-2024 07:14:00 JST pistolero :thispersondoesnotexist:

     in reply to

     • † top dog :pedomustdie:
     • :blank:
     • p
     @i @dcc @p
     
     > I can measure.
     
     And that's about FSE specifically rather than CPUs in general. I don't think anyone can say too much to me about FSE specifically, but CPUs are fabulously complicated nowadays so anyone that knows anything will usually know some things I do not.
     † top dog :pedomustdie: likes this.
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Monday, 15-Jan-2024 07:14:19 JST pistolero :thispersondoesnotexist:

     in reply to

     • NonPlayableClown
     • p
     @NonPlayableClown @p
     
     > service on their lifecycle controller (Dell) and outputs the data from the iDrac.
     
     Yeah, I already have freeipmi installed, it's how I get the hardware logs, it's where the bmc-watchdog comes from (to enable the hardware watchdog), etc. The other screenshot with all the fans and temperatures (CPUs and intake and exhaust and disks) and the amperage drawn per power supply and the voltage of the current coming through the power supply and the wattage consumed by the system.
     
     I'm aware there's a closed-source version from the manufacturer. I'm saying I have access to the hardware logs, so it's not a question of how to get them, it's a question of why this didn't show up. Anything breaks, I can tell, but nothing shows up here: why? If we assume the problem was a flaky PSU, it's conceivable that it could send a spike down the line and this might cause problems that a simple interruption (where the hardware has enough battery to record the log entry) doesn't cause. I hope that's the case anyway: I don't know how to account for it otherwise.
     
     > In linux you can even make a simple script that you can output the hardware status
     
     Yes, I have that, it's what I used to produce the other screenshot, the third panel. It's also what I use to get the logs, and they don't have anything recorded in them. They say things like "Power interrupted" and the timestamp is after I file the ticket asking them to power-cycle the box.
     † top dog :pedomustdie: likes this.
   • pistolero :thispersondoesnotexist: (p@freespeechextremist.com)'s status on Monday, 15-Jan-2024 07:14:20 JST pistolero :thispersondoesnotexist:

     in reply to

     • NonPlayableClown
     • p
     @NonPlayableClown @p
     
     > email alerts setup
     
     This isn't a service, it's a physical machine on a rack at a datacenter. I didn't construct an email alert system or sign up for someone's email alert system or pay any money to pingability or whatever. I have the IPMI monitoring system from the other screenshot on SPC, and then I have the dashboard I built for network monitoring (and also where most of the IRC windows are). I check these things more often than I check my email.
     mushi_dash.png
   • NonPlayableClown (nonplayableclown@postnstuffds.lol)'s status on Monday, 15-Jan-2024 07:14:20 JST NonPlayableClown

     in reply to

     • p
     Depending on your server manufacturer they already provide that service on their lifecycle controller (Dell) and outputs the data from the iDrac.
     
     In linux you can even make a simple script that you can output the hardware status (of course as long as it's not system catastrophic).
     It's not a bad idea to keep in track of psu failure (as long as you have more than one), memory stick failure, and disk degradation.
     
     https://www.unix.com/red-hat/244490-check-psu-status.html
   • NonPlayableClown (nonplayableclown@postnstuffds.lol)'s status on Monday, 15-Jan-2024 07:14:21 JST NonPlayableClown

     in reply to

     • p
     I'm just still surprised there was never any email alerts setup for your PSU going down.
     Did both went down at the same time, or did one fail and the backup eventually died?
   • † top dog :pedomustdie: (dcc@annihilation.social)'s status on Friday, 04-Oct-2024 13:47:15 JST † top dog :pedomustdie:

     in reply to

     • pistolero
     @p 8 months later and now i have a r930, need to figure out the fan speed though way to loud lol.
   • † top dog :pedomustdie: (dcc@annihilation.social)'s status on Friday, 04-Oct-2024 14:22:26 JST † top dog :pedomustdie:

     in reply to

     • pistolero
     @p @p P - " PowerEdge R820" also even with just 4 power modules in it, its like 89 pounds. Reall heavy fucker.
   • pistolero (p@fsebugoutzone.org)'s status on Friday, 04-Oct-2024 14:22:27 JST pistolero

     in reply to

     • † top dog :pedomustdie:
     @dcc @p Nice! ...I can't see the thing you're replying to.
   • pistolero (p@fsebugoutzone.org)'s status on Friday, 04-Oct-2024 14:26:09 JST pistolero

     in reply to

     • † top dog :pedomustdie:
     @dcc @p Oh, yeah, heavy bastard.
     † top dog :pedomustdie: likes this.