[–] 0 points 4 days ago (1 child)

There was a doctor who said to me, "computer games can be addictive". This was after I told her I play games, so she was pretty much implying that I was getting addicted. This was when I hadn't played for over a month due to lack of time from my 9 to 6:30 job.
The same doctor bragged about how she couldn't go about her day without drinking coffee right after waking up.

She said those 2 things within the same 5 minutes.

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  • [–] 4 points 1 week ago (3 children)

    The effects of technology do not occur at the level of opinions or concepts, but alter sense ratios or patterns of perception steadily and without any resistance.

    This is a nice one.
    And I see it happening right in front of my eyes at work. 'How it is used' will defer by the individual and specially for new tools, there will always be a generation of suffering.
    Project Management, Jira/scrum etc had one (I'd say, still ongoing for most workplaces, that haven't figured out the correct match). This one will too; probably more of it.

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  • [–] 8 points 1 month ago

    Remember: the people saying, "Wikipedia isn't a valid source" accepted some random PDF sharing website with 10 popup ads, which you got to after clicking "Accept the risk" as a "valid source".

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  • [–] 5 points 1 month ago

    Microsoft is killing its useful products to push you onto Open Source products.
    Those who just can't get off of its brand are getting alternative cloud products as for consolation.

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    I felt like fixing a thing in qtcreator and tried git clone https://code.qt.io/qt-creator/qt-creator.
    It took over 2 hours to reach 13%. I thought there may be a problem with using https or maybe it was just a network thing, so I tried gi clone git://code.qt.io/qt-creator/qt-creator.git and it turned out to still be as slow.

    While normally opening code.qt.io and using the cgit was pretty snappy, with git, I am getting an average download speed of 10KB/s.

    • Is this how the server is normally configured?
    • Is this only happening with me or do others have the same experience?
    • Did I just get unlucky and try to download during the a maintenance day?

    Similarly, git clone https://code.qt.io/qt-creator/perfparser was also as slow. Although it finished in under 10 minutes because it was a small project.

     

    cross-posted from: https://programming.dev/post/43343171

    I just started checking out auditd and made a rule to log file accesses.

    auditctl -a always,exit -F dir=/path/to/my/directory -F perm=rwa
    

    From the output, I got some things that might be useful:

    • The full path of the executable
    • pid
    • Parent's pid: ppid
    • Process' current working directory cwd

    Now if the process was still running when I check the logs, I could open htop and find out what exactly called the process, from the pid.
    For example, say I run a git pull on a repository and find out that /usr/bin/ssh is accessing some file, I will get something like:

    st
    └ bash
        └ git
            └ ssh
    

    I will get the full executable path of each executable (and know if the executable was not in the system directories, but in some unsafe location writeable by another user). This will give me enough context to go by.

    But using this same example, what happens if I check the logs after the git operation has ended?
    The git process ppid will have been lost(?) and I would have no way to know which process called ssh.

    How do I solve this condition?
    Ideally, I want to have the audit log contain the whole calling tree with the full executable path of each parent.

     

    I just started checking out auditd and made a rule to log file accesses.

    auditctl -a always,exit -F dir=/path/to/my/directory -F perm=rwa
    

    From the output, I got some things that might be useful:

    • The full path of the executable
    • pid
    • Parent's pid: ppid
    • Process' current working directory cwd

    Now if the process was still running when I check the logs, I could open htop and find out what exactly called the process, from the pid.
    For example, say I run a git pull on a repository and find out that /usr/bin/ssh is accessing some file, I will get something like:

    st
    └ bash
        └ git
            └ ssh
    

    I will get the full executable path of each executable (and know if the executable was not in the system directories, but in some unsafe location writeable by another user). This will give me enough context to go by.

    But using this same example, what happens if I check the logs after the git operation has ended?
    The git process ppid will have been lost(?) and I would have no way to know which process called ssh.

    How do I solve this condition?
    Ideally, I want to have the audit log contain the whole calling tree with the full executable path of each parent.

    submitted 10 months ago* (last edited 10 months ago) by to c/programmer_humor@programming.dev
     

    ffmpeg ... -c:a flac -exact_rice_parameters 1 -multi_dim_quant 1 ...

    I was encoding wav to flac.

    • With default options, the result was almost instant
      • At > 500x speed
    • Used -compression_level 12, finished in ~ 7 seconds
      • speed = 48.9x
    • Then I used multi_dim_quant
      • After ~ 10 minutes, I checked the speed to be ~ 0.02x. So thought it would take an hour or so. 1.30 seconds worth of audio was encoded
      • It's been over 2 hours now.
        • Shows 1.46 seconds of audio encoded with current speed = 0.00017x

    Considering running it in a VM, so I can "pause" it whenever I need to restart my computer.

    Update:
    size= 123KiB time=00:00:02.82 bitrate= 356.3kbits/s speed=4.68e-05x
    It stopped trying to use layman notation.
    I'll need to restart soon-ish, but I'll see how far this goes and if the 2.82 seconds of audio is even listenable.

     

    cross-posted from: https://programming.dev/post/34025065

    DeviantArt Link

    Endless Sky is and open source game. This animation is inspired by the compass image that shows up on the menu screen.

    CC BY-NC-SA 4.0 : https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en

    Used stock https://github.com/endless-sky/endless-sky.github.io/blob/master/images/compass.svg as the base. License info at https://github.com/endless-sky/endless-sky/blob/master/copyright:

    ==========

    Files: images/*

    Copyright: Michael Zahniser mzahniser@gmail.com

    License: CC-BY-SA-4.0

    ==========

    When sharing, please make sure to include the information in this description including information regarding the stock image. If not possible, then at leas keep the metadata in the file, which contains similar information.

    Modelled and animated in Blender on Linux


    If you are affiliated to the game "Endless Sky" and need a change in licensing info let me know here.

     

    cross-posted from: https://programming.dev/post/34025065

    DeviantArt Link

    Endless Sky is and open source game. This animation is inspired by the compass image that shows up on the menu screen.

    CC BY-NC-SA 4.0 : https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en

    Used stock https://github.com/endless-sky/endless-sky.github.io/blob/master/images/compass.svg as the base. License info at https://github.com/endless-sky/endless-sky/blob/master/copyright:

    ==========

    Files: images/*

    Copyright: Michael Zahniser mzahniser@gmail.com

    License: CC-BY-SA-4.0

    ==========

    When sharing, please make sure to include the information in this description including information regarding the stock image. If not possible, then at leas keep the metadata in the file, which contains similar information.

    Modelled and animated in Blender on Linux


    If you are affiliated to the game "Endless Sky" and need a change in licensing info let me know here.

    pacman -S endless-sky

     

    DeviantArt Link

    Endless Sky is and open source game. This animation is inspired by the compass image that shows up on the menu screen.

    CC BY-NC-SA 4.0 : https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en

    Used stock https://github.com/endless-sky/endless-sky.github.io/blob/master/images/compass.svg as the base. License info at https://github.com/endless-sky/endless-sky/blob/master/copyright:

    ==========

    Files: images/*

    Copyright: Michael Zahniser mzahniser@gmail.com

    License: CC-BY-SA-4.0

    ==========

    When sharing, please make sure to include the information in this description including information regarding the stock image. If not possible, then at leas keep the metadata in the file, which contains similar information.

    Modelled and animated in Blender on Linux


    If you are affiliated to the game "Endless Sky" and need a change in licensing info let me know here.

     

    I come from EndeavourOS and when I installed Arch manually, I realised that I had to systemctl enable quite a few services. That included NetworkManager and sddm.

    I was wondering if there exists some PostTransaction hook available that would prompt me about enabling a service/socket after a package installs one?

    So, if I were to do pacman -S extra/bluez-obex, it would later prompt me with:
    Enable obex.service? [g|global] [u|user] [n|no]
    And if I were to answer with anything other than "no"...
    Start now?

    Might be different for system services, but you get the point.

    submitted 1 year ago* (last edited 1 year ago) by to c/hardware@programming.dev
     

    What is the rationale behind GPU heatsink fin design?

    So I have seen a few GPU heatsinks and I wonder why some of them are how they are.

    GPU placement in Cabinet

    The originally intended and most widely used placement for ATX cases at least, is installing right on the PCIe slot, which goes horizontally and with the air incoming from the front of the case.

    gpu_traditional_fit

    Then we have the "vertical" placement using the riser cable, which changes the direction from which the GPU fans take in air, but keep the GPU front, in the same direction, again lining up with the incoming air from the front.

    gpu_trendy_fit

    Finally the very rare vertical placement, which has the front of the GPU rotated towards the top of the case, making it not line up with an airflow incoming from the front.
    This also makes the GPU's ports inaccessible the standard way, giving a reason to the rarity.

    gpu_exotic_fit

    Some examples I found for this

    Here we see that the first 2 placements would make up most of the ATX PC builds with the third one being either for different case styles or for extensively customised builds.

    Fins, fans and airflow

    I would assume that having the air flow along the fins would be better than it crossing the fins at ⦜90°. And even if the air flow due to the case inlet is being ⟂ to the airflow from the GPU fans (in case of front incoming air flowing along the fins), it should still lead to overall increase in air pressure (hence, air density) between the fins.^[Source: Mental simulation] Considering that GPUs tend to have gaps in the IO shield to let the air go out the back, I would assume they (designers of the thermal dissipation solution) want air from the fins to go out the back, which would be better with fins parallel to front incoming air.

    gpu_airflow_illust

    Inference and Doubt

    From the above 2, it would make sense for most GPUs to have their heatsink fins going along their length instead of their width, right?

    Then what's up with the ASRock lineup, with all cards other than the Passive model, the Creator cards (which have the front covered by the shroud anyway, so no incoming airflow) and the watercooled cards (which is not applicable) having the fins ⟂ to front air inlet?
    And of course they are not the only one doing it that way.


    Follow Up

    While discussing in this thread, I realised another point (which I didn't state anywhere in the comments):

    • While it is desirable to have higher air density, it is not desirable to have air increasing in density while in the inter-fin space. Because that would cause the heat released when changing density to be transferred to the fins.
    • Another way to say that is, the air will get hotter, while increasing its density. So, how much this factor matters, will depend upon the initial temperature difference between the air and the fins and how long the dense air stays in the inter-fin space. Oh and also the composition of air.
     

    Also, bought 2 of them, because the brain needed to fart out loud.

    Not only are the fans much slower than what the sticker says (2000RPM), they also make more heat in the motor than they will ever dissipate. And of course, they just couldn't sell one without RGB.

    Looked closely and even the axle is not centred.

    On the other hand

    Can someone help me do something fun with this that would make me feel less shitty about myself?

     

    I have a Seagate Expansion Portable HDD, which I want to check the SMART status of^[Why? For FUN of course!]

    I looked at a comment for a WD HDD, which made me look into man smartctl -> /--device after having the message from smartctl -a <dev/path> having:

    Read Device Identity failed: scsi error unsupported field in scsi command
    
    If this is a USB connected device, look at the various --device=TYPE variants
    

    Now the manual lists many different possible device types and I am yet, unable to find the correct one. Any ideas would be appreciated.

    I tried simply searching for "seagate" in man smartctl, but there was no match in the --device section.

    I am currently trying to look for a way to get information on what USB to SATA adapter is being used (hopefully without having to open it up)


    Some additional info:

    lsusb -v ...

    Bus 00* Device 00*: ID 0bc2:231a Seagate RSS LLC Expansion Portable
    Negotiated speed: SuperSpeed (5Gbps)
    Device Descriptor:
      bLength                18
      bDescriptorType         1
      bcdUSB               3.00
      bDeviceClass            0 [unknown]
      bDeviceSubClass         0 [unknown]
      bDeviceProtocol         0 
      bMaxPacketSize0         9
      idVendor           0x0bc2 Seagate RSS LLC
      idProduct          0x231a Expansion Portable
      bcdDevice            7.10
      iManufacturer           1 Seagate
      iProduct                2 Expansion
      iSerial                 3 NAA*****
      bNumConfigurations      1
      Configuration Descriptor:
        bLength                 9
        bDescriptorType         2
        wTotalLength       0x0079
        bNumInterfaces          1
        bConfigurationValue     1
        iConfiguration          0 
        bmAttributes         0x80
          (Bus Powered)
        MaxPower              896mA
        Interface Descriptor:
          bLength                 9
          bDescriptorType         4
          bInterfaceNumber        0
          bAlternateSetting       0
          bNumEndpoints           2
          bInterfaceClass         8 Mass Storage
          bInterfaceSubClass      6 SCSI
          bInterfaceProtocol     80 Bulk-Only
          iInterface              0 
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x81  EP 1 IN
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0400  1x 1024 bytes
            bInterval               0
            bMaxBurst              15
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x02  EP 2 OUT
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0400  1x 1024 bytes
            bInterval               0
            bMaxBurst              15
        Interface Descriptor:
          bLength                 9
          bDescriptorType         4
          bInterfaceNumber        0
          bAlternateSetting       1
          bNumEndpoints           4
          bInterfaceClass         8 Mass Storage
          bInterfaceSubClass      6 SCSI
          bInterfaceProtocol     98 
          iInterface              0 
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x01  EP 1 OUT
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0400  1x 1024 bytes
            bInterval               0
            bMaxBurst               0
            Command pipe (0x01)
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x82  EP 2 IN
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0400  1x 1024 bytes
            bInterval               0
            bMaxBurst               0
            MaxStreams             32
            Status pipe (0x02)
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x83  EP 3 IN
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0400  1x 1024 bytes
            bInterval               0
            bMaxBurst              15
            MaxStreams             32
            Data-in pipe (0x03)
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x04  EP 4 OUT
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0400  1x 1024 bytes
            bInterval               0
            bMaxBurst               7
            MaxStreams             32
            Data-out pipe (0x04)
    Binary Object Store Descriptor:
      bLength                 5
      bDescriptorType        15
      wTotalLength       0x0016
      bNumDeviceCaps          2
      USB 2.0 Extension Device Capability:
        bLength                 7
        bDescriptorType        16
        bDevCapabilityType      2
        bmAttributes   0x00000f0e
          BESL Link Power Management (LPM) Supported
        BESL value     3840 us 
      SuperSpeed USB Device Capability:
        bLength                10
        bDescriptorType        16
        bDevCapabilityType      3
        bmAttributes         0x00
        wSpeedsSupported   0x000e
          Device can operate at Full Speed (12Mbps)
          Device can operate at High Speed (480Mbps)
          Device can operate at SuperSpeed (5Gbps)
        bFunctionalitySupport   1
          Lowest fully-functional device speed is Full Speed (12Mbps)
        bU1DevExitLat          10 micro seconds
        bU2DevExitLat          32 micro seconds
    Device Status:     0x0000
      (Bus Powered)
    
    
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