Philip Chan@comphilipApr 19, 2023Use iPXE to install ubuntu 22.04 over HTTP without DHCP and TFTP comphilip.wordpress.comUse iPXE to install ubuntu 22.04 over HTTP without DHCP and TFTPBackground Sometimes I had to install ubuntu to remote HP/Dell server. Both HP and Dell has remote KVM to allow user to management server. User can mount local iso file as virtual CD-ROM device for…27
Philip Chan@comphilipDec 1, 2022Switch Windows 11 to Xubuntu comphilip.wordpress.comSwitch Windows 11 to XubuntuAfter tried several times to install Windows 11 22H2 to my old laptop(Lenovo X201s), maybe it is time to leave windows for my old devices. As a developer, keep operation system up to date is import…
Philip Chan@comphilipNov 17, 2022NFS Suck: NFSv4 comphilip.wordpress.comNFS Suck: NFSv4There are 2 kind of NFS v4 production issues since this year. After tired troubleshooting problems, I changed to NFS v3, and wonderful life returned. Incompatible NFSv4 Server Implementation (QNAP)…
Philip Chan@comphilipNov 15, 2022Performance Tuning Is Hard comphilip.wordpress.comPerformance Tuning Is HardIn recent 3 months, I did improve several applications performance tuning, gained much reduced memory usage and CPU time. Model training time takes from days to hours. Well, it is hard to achieve s…
Philip Chan@comphilipNov 8, 2022Julia to Rust, 450% performance boost comphilip.wordpress.comJulia to Rust, 450% performance boostTo prevent computing node resource exhausted by buggy scripts or configurations, computing task was wrapped into a docker container with resource limits. The difficult thing was to accurate estimat…
Switch Windows 11 to XubuntuPerformance Tuning Is HardJulia to Rust, 450% performance boost
