Forwarded from Hacker News (yahnc_bot)
Bram Moolenaar Passed Away https://groups.google.com/g/vim_announce/c/tWahca9zkt4
Forwarded from Hacker News (yahnc_bot)
A close look at the 8086 processor's bus hold circuitry http://www.righto.com/2023/08/intel-8086-bus-hold.html
Forwarded from Phoronix News
Phoronix
Google's BBRv3 TCP Congestion Control Showing Great Results, Will Be Upstreamed To Linux
Google's open-source BBR TCP congestion control algorithm is widely used within Google and its v3 iteration is already proving a success within the company and they are working toward upstreaming BBRv3 into the mainline Linux kernel...
Google's BBRv3 TCP Congestion Control Showing Great Results, Will Be Upstreamed To Linux
Google's open-source BBR TCP congestion control algorithm is widely used within Google and its v3 iteration is already proving a success within the company and they are working toward upstreaming BBRv3 into the mainline Linux kernel...
Phoronix
Google's BBRv3 TCP Congestion Control Showing Great Results, Will Be Upstreamed To Linux
Google's open-source BBR TCP congestion control algorithm is widely used within Google and its v3 iteration is already proving a success within the company and they are working toward upstreaming BBRv3 into the mainline Linux kernel.
👍2
Forwarded from Hacker News (yahnc_bot)
Cloth Simulation https://oimo.io/works/cloth/
oimo.io
Cloth Simulation
Forwarded from Easton Man's Channel (Easton's RSS Bot)
Chips and Cheese
Sandy Bridge: Setting Intel’s Modern Foundation
#ChipAndCheese
Telegraph | source
(author: clamchowder)
Sandy Bridge: Setting Intel’s Modern Foundation
#ChipAndCheese
Telegraph | source
(author: clamchowder)
Telegraph
Sandy Bridge: Setting Intel’s Modern Foundation
Processor companies typically iterate off proven designs, and for good reason. Changing too many things at once introduces a lot of risk. A lot of changing parts makes it hard to get a good picture of overall performance, so it also makes tuning difficult.…
Forwarded from Solidot
苹果购买了台积电 3 纳米工艺全部产能
2023-08-08 23:03 by 无尽的边界
苹果是台积电最大的客户，该公司 2022 年 720 亿美元营收中来自苹果的订单占了 23%。苹果对于台积电的订单规模是如此之大，以至于它可以让台积电承担芯片缺陷的损失。芯片公司用大型硅晶圆一次制造多个芯片，晶圆然后切割成多个处理器晶粒（die）。芯片设计公司通常需要为每个晶粒付费，不管它是否存在缺陷。对于有缺陷的晶粒，芯片设计公司会通过降低频率或关闭部分元件的方法出售，尝试收回部分成本。对于台积电最新的 3 纳米工艺，苹果采购了短期内的全部产能，而且订单规模如此之大，台积电可以承担得起缺陷芯片的成本。也就是对于有缺陷的芯片，苹果无需承担费用。苹果将独占台积电 3 纳米工艺大约一年时间，之后才会允许其它公司采用。
https://arstechnica.com/?p=1959335
#苹果
2023-08-08 23:03 by 无尽的边界
苹果是台积电最大的客户，该公司 2022 年 720 亿美元营收中来自苹果的订单占了 23%。苹果对于台积电的订单规模是如此之大，以至于它可以让台积电承担芯片缺陷的损失。芯片公司用大型硅晶圆一次制造多个芯片，晶圆然后切割成多个处理器晶粒（die）。芯片设计公司通常需要为每个晶粒付费，不管它是否存在缺陷。对于有缺陷的晶粒，芯片设计公司会通过降低频率或关闭部分元件的方法出售，尝试收回部分成本。对于台积电最新的 3 纳米工艺，苹果采购了短期内的全部产能，而且订单规模如此之大，台积电可以承担得起缺陷芯片的成本。也就是对于有缺陷的芯片，苹果无需承担费用。苹果将独占台积电 3 纳米工艺大约一年时间，之后才会允许其它公司采用。
https://arstechnica.com/?p=1959335
#苹果
👍1
向群友提问
把一个块设备直接给 qemu，在 qemu 里面 guest 和外面 host 看到的 iops 有显著不同（大概差两到三倍），可能是什么原因呢
把一个块设备直接给 qemu，在 qemu 里面 guest 和外面 host 看到的 iops 有显著不同（大概差两到三倍），可能是什么原因呢
Forwarded from Hacker News (yahnc_bot)
Typograms: A definition and renderer for ASCII diagrams https://google.github.io/typograms/
Forwarded from Phoronix News
Phoronix
Intel DOWNFALL: New Vulnerability Affecting AVX2/AVX-512 With Big Performance Implications
This Patch Tuesday brings a new and potentially painful processor speculative execution vulnerability... Downfall, or as Intel prefers to call it is GDS: Gather Data Sampling. GDS/Downfall affects the gather instruction with AVX2 and AVX-512 enabled processors. At least the latest-generation Intel CPUs are not affected but Tigerlake / Ice Lake back to Skylake is confirmed to be impacted. There is microcode mitigation available but it will be costly for AVX2/AVX-512 workloads with GATHER instructions in hot code-paths and thus widespread software exposure particularly for HPC and other compute-intensive workloads that have relied on AVX2/AVX-512 for better performance.
Intel DOWNFALL: New Vulnerability Affecting AVX2/AVX-512 With Big Performance Implications
This Patch Tuesday brings a new and potentially painful processor speculative execution vulnerability... Downfall, or as Intel prefers to call it is GDS: Gather Data Sampling. GDS/Downfall affects the gather instruction with AVX2 and AVX-512 enabled processors. At least the latest-generation Intel CPUs are not affected but Tigerlake / Ice Lake back to Skylake is confirmed to be impacted. There is microcode mitigation available but it will be costly for AVX2/AVX-512 workloads with GATHER instructions in hot code-paths and thus widespread software exposure particularly for HPC and other compute-intensive workloads that have relied on AVX2/AVX-512 for better performance.
Phoronix
Intel DOWNFALL: New Vulnerability Affecting AVX2/AVX-512 With Big Performance Implications
This Patch Tuesday brings a new and potentially painful processor speculative execution vulnerability...
Forwarded from VNKC Public Channel
https://twitter.com/cutlass_charcot/status/1665318728282636290
cutlass@C102日曜日 西"あ"23b : 雨の日の出会い
リプ全返信キャンペーン中です、お気軽にどうぞ
cutlass@C102日曜日 西"あ"23b : 雨の日の出会い
リプ全返信キャンペーン中です、お気軽にどうぞ