possible to find a paper titled as such with sections starting with
"Interpreting system activity".
There is a "Monitoring System Performance" section present from the 4.1BSD
Installing and Operating paper up to and including the 4.4BSD paper. The advice
in this section has not aged very well.
From "Installing and Operating 4.3BSD-tahoe UNIX on the VAX":
"Cumulatively on one of our large machines we average about 60-100
context switches and interrupts per second and about 70-120 system calls
per second"
- Addresses the issue described in PR/38828.
- Some simplification in threading and sleepq subsystems.
- Eliminates pmap_collect() and, as a side note, allows pmap optimisations.
- Eliminates XS_CTL_DATA_ONSTACK in scsipi code.
- Avoids few scans on LWP list and thus potentially long holds of proc_lock.
- Cuts ~1.5k lines of code. Reduces amd64 kernel size by ~4k.
- Removes __SWAP_BROKEN cases.
Tested on x86, mips, acorn32 (thanks <mpumford>) and partly tested on
acorn26 (thanks to <bjh21>).
Discussed on <tech-kern>, reviewed by <ad>.
isn't generally enabled by default, and i wanted -h for something else.
- implement -h, which displays statistics for various kernel hash tables
- add deref_kptr(), which does the hard work of kvm_read() et al
- various minor cleanups
sevan