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  • 19:37, 6 February 2023NAPI (hist | edit) ‎[681 bytes]Dank (talk | contribs) (Created page with "The "New API" for Linux NIC drivers introduced around 2001, NAPI is initiated by a NIC's hardware interrupt, but then disables interrupts and polls the card for a period. This can significantly reduce the CPU load compared to a pure interrupt-driven solution. NAPI largely obsoletes the "interrupt coalescing" features of some NICs. It is strictly receive-side. ==The NAPI path== A NIC has some number of hardware RX queues, each of which is mapped to an interrupt number an...")
  • 06:07, 27 January 202392mm fans (hist | edit) ‎[747 bytes]Dank (talk | contribs) (Created page with " {|class="wikitable sortable" ! Model !! RPM || dB(A) !! m³/h !! mm H₂O !! Color !! Power(W) !! Comments |- | San Ace 92 9CRA0912P0G001 || 13300 || 81 || 348 || 168.4 || Black || 108 || 76mm thick |- | NF-A9 PWM || 2000 || 22.8 || 78.9 || 2.28 || Brown || 1.2 || |- | NF-A9 PWM chromax.swap || 2000 || 22.8 || 78.9 || 2.28 || Black || 1.2 || |- | NF-B9 redux-1600 PWM || 1600 || 17.6 || 64.3 || 1.61 || Grey || 0.96 || |- | NF-A9x14 HS-PWM chromax.black.swap || 2500 ||...")
  • 00:54, 22 January 2023DDIO (hist | edit) ‎[1,423 bytes]Dank (talk | contribs) (Created page with "Data Direct I/O is an [https://www.intel.com/content/www/us/en/io/data-direct-i-o-technology.html Intel technology] allowing PCIe devices to interact directly with local processor LLCs (Last Level Caches). It supersedes and extends Direct Cache Access, and is present on E7 Xeons of the second generation and later, and all E5 Xeons. ==Configuration== Model-specific register 0xc8b controls which LLC ways are used by DDIO. There is currently no CPUID element co...")
  • 07:50, 12 January 2023Control Groups (hist | edit) ‎[3,317 bytes]Dank (talk | contribs) (Created page with "aka cgroupsv2 aka unified cgroups. Control Groups v2 were unveiled in Linux 4.5 as a means of controlling resource allocation across groups of tasks. Unlike the previous implementation of control groups (introduced in Linux 2.6.24), these cgroups would be under a single hierarchy, usually mounted with a <tt>cgroup2</tt>-type virtual filesystem at <tt>/sys/fs/cgroup</tt>. systemd makes fundamental use of cgroups (and indeed, last I checked it couldn't run without them...")
  • 03:52, 1 January 2023Ergot (hist | edit) ‎[17,249 bytes]Dank (talk | contribs) (Created page with "* '''Ergot''': fungi of the genus Claviceps. All Claviceps species are ergot. The most well-known member is Claviceps purpurea (Latin ''purpuro'', purple, "to adorn/beautify"), the rye ergot fungus, which is parasitic on grasses and cereals (especially rye). ** A Claviceps spore infects a flowering grass or cereal's floret. Upon connection to the vascular bundle, soft white sphacelia tissue develops. This hardens and dries into a sclerotium in the destroyed floret's husk...")
  • 19:22, 6 December 2022Strangelet (hist | edit) ‎[4,849 bytes]Dank (talk | contribs) (Created page with "A 24x 3.5" bay 4U machine I bought off ebay in 2022 for $999. ==As delivered== * Supermicro [https://www.supermicro.com/en/products/system/4U/8048/SYS-8048B-TRFT.cfm 8048B-TRFT] chassis * Supermicro [https://www.supermicro.com/en/products/motherboard/X10QBI X10QBi] motherboard") Tags: Mobile edit Mobile web edit
  • 15:31, 4 December 2022Dare Obasanjo (hist | edit) ‎[14,640 bytes]Dank (talk | contribs) (Created page with "'''dankblog! 2022-12-05, 0946 EDT, at the danktower''' this is a bit different post than normal, as it's targeted largely at one person -- my friend Carnage4Life, the one and only Dare Obasanjo. we attended GT together, where Dare impressed me as a thinker and a person. in the twenty years afterwards, he proved himself a public intellectual and, however much i loathe the term, a "thought leader". he also proved himself a good buddy, and we kic...") Tags: Mobile edit Mobile web edit
  • 00:40, 1 December 20221985v2022 (hist | edit) ‎[2,329 bytes]Dank (talk | contribs) (Created page with "'''dankblog! 2022-11-30, 1939 EDT, at the danktower''' '''previously: "a unix riddle" 2022-09-17''' Category:Blog") Tags: Mobile edit Mobile web edit
  • 10:02, 26 November 202280mm fans (hist | edit) ‎[2,308 bytes]Dank (talk | contribs) (Created page with "80mm fans shift largely away from consumer brands and towards the industrial, presumably because getting serious air movement out of an 80mm fan requires very high rotation speed. {|class="wikitable sortable" ! Model !! RPM || dB(A) !! m³/h !! mm H₂O !! Color !! Power(W) !! Comments |- | |- |} CATEGORY: Hardware") Tags: Mobile edit Mobile web edit
  • 09:07, 24 November 2022Kolmogorov complexity (hist | edit) ‎[11 bytes]Dank (talk | contribs) (Created page with "Mysterious!") Tags: Mobile edit Mobile web edit
  • 07:13, 24 November 2022ESP8266 (hist | edit) ‎[2,554 bytes]Dank (talk | contribs) (Created page with "A series of 32-bit microcontroller units from [https://www.espressif.com/ Espressif], followed by the ESP32. ==External links== * [https://en.wikipedia.org/wiki/ESP8266 ESP8266] on Wikipedia")
  • 07:10, 24 November 2022ESP32 (hist | edit) ‎[245 bytes]Dank (talk | contribs) (Created page with "A 32-bit microcontroller unit from [https://www.espressif.com/en/products/socs/esp32 Espressif]. CATEGORY: Hardware")
  • 23:08, 20 November 2022ATX (hist | edit) ‎[34 bytes]Dank (talk | contribs) (Created page with "==See also== * The_Power,_pt_1")
  • 08:35, 20 November 2022PC Fans (hist | edit) ‎[23,454 bytes]Dank (talk | contribs) (Created page with "Fans for personal computers are roughly governed by specifications from Intel and Noctua: * Intel's [https://www.intel.com/content/dam/support/us/en/documents/intel-nuc/intel-4wire-pwm-fans-specs.pdf 4-Wire Pulse Width Modulation Controlled Fans] spec, revision 1.3 (2005-09) * Noctua's [https://noctua.at/pub/media/wysiwyg/Noctua_PWM_specifications_white_paper.pdf PWM Specification White Paper] Almost all available fans are either 5V, 12V, or 24V, with 12V dominating...")
  • 02:27, 14 November 2022Overclocking Threadripper (hist | edit) ‎[439 bytes]Dank (talk | contribs) (Created page with "* 3970X stock clocks, XMP mode 1 (3000), ambient 17.9C, <tt>stress-ng --cpu 64</tt> ** T<sub>avg</sub> max: 51.5C / PCH max: 52C ** VRM remains constant at 44C ** ΔT max: 1.26C (coolant measured at highflow post-CPU, ambient measured at lower mobo-side exterior) ** all cores run at 4133 according to <tt>turbostat</tt> (TSC<sub>MHz</sub>: 3700) ** CoreW: 216 PackageW: 280")
  • 04:16, 9 November 2022Bambu Carbon X1C (hist | edit) ‎[100 bytes]Dank (talk | contribs) (Created page with "My Bambu Carbon X1C arrived 2022-10-10, after preordering in August 2022. CATEGORY: 3D printing")