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adadada

V2EX member #24463, joined on 2012-07-30 00:23:49 +08:00
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能自己改 kernel 的话,直接调用 irqs_disabled()
@msg7086 #15 EYPC 上 NPS 配置大于 1 的时候,也是单 socket 多 numa domain ,memory interleave 也会被限定在每个 numa domain 的 memory channel 上进行,而不是在单 socket 的所有 memory channel 上做 interleave
如果对数据完整性又严格要求,建议还是在业务逻辑中也加上额外的检查。隔壁组遇到过网卡的 tcp offload 实现有 bug ,csum 过的报文会以极小概率随机出现几个 bit 的错误
@kgdb00 #3 KVM 里 intel nvmx 主要是有几个大公司 (比如 Google) 在生产环境使用,所以不断在贡献代码; AMD 之前在服务器市场萎靡这么多年,正常的 L1 部分都没怎么维护,更别提嵌套虚拟化了,不过现在已经在逐渐补齐了。
@feather12315 #5 Intel GVT-g 不是 SRIOV,还是通过软件辅助在多个 VM 之间实现 GPU 资源复用
咬咬牙不要卖掉 xscale,也许今天的移动市场就是另外一个样子了
Jan 8, 2021
Replied to a topic by Hackerchai DNS 你更倾向于 DoH 还是 DoT?
@TypeError DNS 服务器最大的特征就是它能响应 DNS 请求。防火墙给 443 端口的服务器发个 doh 请求试探一下,谁回就封谁
GEM5,默认应该没有实时输出各种状态,但是代码是开源的,你可以自己加
听上去有点像 overleaf
加点内存试试。瓶颈可能不在 cpu,而是内存不够,host 没空间分配 page cache 和频繁要做 swap 了。另外,内存吃紧的情况下,ksm 对性能影响也比较大
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