Find guides, tutorials, and documentation to help you get the most out of CubePath services.
Showing 10 of 10 guides
Measure TCP and UDP throughput, packet loss and jitter between two Ubuntu 24.04 servers with iperf3, test both directions and find network bottlenecks.
Measure disk IOPS, throughput and latency with fio on Ubuntu 24.04. Run random and sequential tests, simulate database writes and save results as JSON.
Benchmark PostgreSQL with pgbench and MySQL with mysqlslap on Ubuntu 24.04. Measure TPS and latency, test concurrency and compare results after tuning.
Install k6 on Ubuntu 24.04 and load test a web application: write test scripts, ramp virtual users, set pass/fail thresholds and export an HTML report.
Tune sysctl network settings, TCP backlogs, BBR and file descriptor limits for a busy Nginx server on Ubuntu 24.04, and verify every change with real counters.
Inspect NUMA topology on a multi-socket Linux server, measure the cost of remote memory and pin applications to NUMA nodes with numactl and systemd.
Check which I/O scheduler each disk uses on Ubuntu 24.04, pick none, mq-deadline, BFQ or Kyber, make the choice persistent with udev and benchmark it with fio.
Read memory usage correctly, add a swap file, tune swappiness and cache pressure, enable zswap and shield key services from the OOM killer on Ubuntu 24.04.
Find the CPU frequency driver, set the governor and energy hint, control turbo boost and C-states with cpupower and persist it with systemd on Ubuntu 24.04.
Use sysbench on Ubuntu 24.04 to measure CPU, memory, disk I/O and MySQL OLTP performance, read the results correctly and save a baseline to compare servers.
