TechSNAP

423: Hopeful for HAMR

February 21st, 2020  |  29 mins 36 secs

18.04, 18.04.4, a cloud guru, arc, benchmarks, cache, caching, clear linux, clear linux os, devops, filesystems, hamr, hard drives, hardware enablement, hdd, intel, jupiter broadcasting, l2arc, latency, linux, linux academy, linux desktop, lru, lts, maintenance release, mamr, microsoft, mobaxterm, performance, seagate, smr, storage, swupd, sysadmin podcast, techsnap, throughput, ubuntu, western digital, wifi, windows, wsl, zfs, zfs on linux, zol

We explore the potential of heat-assisted magnetic recording and get excited about a possibly persistent L2ARC.

407: Old School Outages

July 10th, 2019  |  42 mins 31 secs

amd, benchmarks, bgp, bgp leak, cloudflare, cpu, deployment, devops, ecc, epyc, facebook, google, grafana, infosec, intel, internet, internet infrastructure, librenms, logging, logs, metrics, microsoft, monitoring, nagios, netdata, nrpe, observability, old school, opennms, outages, performance, prometheus, regex, riemann, rkpi, ryzen, server, server builds, sysadmin, techsnap, time series, verizon, xeon, zabbix

Jim shares his Nagios tips and Wes chimes in with some modern monitoring tools as we chat monitoring in the wake of some high-profile outages.

404: Prefork Pitfalls

May 25th, 2019  |  33 mins 49 secs

apache, apache bench, apache mpms, benchmarking, cdn, concurrency, devops, event loop, http, lighttpd, mod_php, multi-processing modules, networking, nginx, performance, php, prefork, scalability, static sites, sysadmin, techsnap, threadpool, threads, varnish, w3 total cache, web hosting, web servers, wordpress

We turn our eye to web server best practices, from the basics of CDNs to the importance of choosing the right multi-processing module.

Episode 351: Performance Meltdown

January 11th, 2018  |  41 mins 43 secs

backdoor, coordinated disclosure, freebsd, kaiser, kpti, macos high sierra, meltdown, pcid, perfmon, performance, pti, side-channel attack, spectre, speculative execution, sysadmin podcast, sysinternals, techsnap, ubuntu, wd my cloud

The types of workloads that will see the largest performance impacts from Meltdown, tools to test yourself, and the outlook for 2018.

Plus a concise breakdown of Meltdown, Spectre, and side-channel attacks like only TechSNAP can.