# Technical docs ###### tags: `IT` Most of them are Mandarin, but they all have example code or experiement results. I'd like to discuss more about what I've done. ## Linux kernel learnings: ### 2021 * [File system: Simplefs](https://hackmd.io/@fwfly/simplefs) ### Linux related docs * [loadavg and HZ](https://hackmd.io/@fwfly/r1JrEIP8I) * [SCSI](https://hackmd.io/@fwfly/rk3nVrmoL) * [TCP/IP implementation](https://hackmd.io/@fwfly/BkM07XNeH) ## Prometheus * [Note of Storage of Prometheus & thanos](https://hackmd.io/@fwfly/B1Un_k4Nke) ## Technical docs * [DNS related](https://hackmd.io/@fwfly/DNS) * [Makefile](https://hackmd.io/@fwfly/BkNH11J0U) * [alertmanager](https://hackmd.io/@fwfly/SJe1JiGwU) * [PostgresBDR](https://hackmd.io/@fwfly/BJvoIcW_r) * [SSD, SATA, PCIe, NVMe and AHCI](https://hackmd.io/@fwfly/rJSQ0gLqu) * [virsh VM how to](https://hackmd.io/@fwfly/Hk4eChoAw) ## Python * [Python function and assignment](https://hackmd.io/@fwfly/python_function) * [Code trace for python subprocess.run ](https://hackmd.io/@fwfly/BkufrojNS)