9 Commits

Author	SHA1	Message	Date
Nathan Scott	5dfb524237	Implement command line and environment handling for pcp htop.	2021-06-09 17:09:29 +10:00
Nathan Scott	b424a5b137	Implement shared memory support on the PCP platform ... Uses the mem.util.shared metric (Shmem from meminfo).	2021-06-09 17:09:29 +10:00
Nathan Scott	d3af4e670d	Update PCP platform to use the old hostname API call ... Fixes CI builds which are on an old version of PCP.	2021-06-09 17:09:29 +10:00
Nathan Scott	956b2ae70c	Update PCP platform to match latest API changes ... Updates for recent NetworkIO Meter changes, adds support for the SysArch and HostName Meters. The SysArch change is based on work originally by Sohaib Mohamed.	2021-06-09 17:09:29 +10:00
Nathan Scott	c6f20fbcc6	Fixes and cleanups for ZFS Meters and metrics	2021-06-09 17:09:29 +10:00
Nathan Scott	0e7ae9a592	Ensure PCP platform ZramMeter always uses initialized data	2021-06-09 17:09:29 +10:00
Sohaib	407d32e121	Fix PCP ZramMeter in presense of missing zram metrics	2021-06-09 17:09:29 +10:00
Sohaib	e1d1a5cec6	Add ZFS ARC statistics and meters to the PCP platform	2021-06-09 17:09:29 +10:00
Nathan Scott	c14a45ba35	Add a platform for Performance Co-Pilot (PCP) metrics ... This introduces an initial platform for extracting metrics using the PCP performance metrics API - PMAPI(3). It can be used via the --enable-pcp=yes configure option. So far I've added support for live localhost metrics only, and only using pre-defined metrics already found in htop. If available, all sampling is performed by pmcd(1) - else, we fallback to htop doing the metric sampling itself (all below the PMAPI). When pmcd is used, it may be configured to run children with elevated privileges, so htop does not need to be setuid (authentication with pmcd is available). Additionally, the PMAPI allows us to support archives (for historical analysis and for automated regression tests in htop). We'll need platform-specific command line argument additions, which isn't yet feasible in htop (not difficult to add though). The goal of this first version is minimal impact in terms of modifying the htop codebase, to introduce key ideas in PCP (metric namespace, metadata, APIs and so on) and give us something to discuss, experiment with and build on.	2021-06-09 17:09:29 +10:00