v2.11.0

Modifications for atop:

• Cgroups (version 2) support.
  Show the hierarchical structure of cgroups and the related metrics with key/option 'G', and define the cgroup depth with the keys/options 2 till 7. Key/option 8 also shows the processes per cgroup level, except the kernel processes in the root cgroup. Key/option 9 shows the related processes per cgroup level including the kernel processes in the root cgroup. With key/option 'C' the output is sorted on CPU consumption (default), with key/option 'M' on memory consumption, and with key/option 'D' (requires root privileges) on disk utilization.
  Note: The collection of cgroup information per process is not supported any more.
• Twin mode: live measurement with review option.
  In twin mode atop spawns into a lower level process that gathers the counters and writes them to a temporary raw file, and an upper level process that reads the counters from the temporary raw file and presents them to the user.
  The reading of the upper level process keeps in pace with the written samples of the lower level process for live measurements. However, when pressing the 'r' (reset to measurement begin), the 'b' (branch to time stamp), or the 'T' (previous sample), the upper level process implicitly pauses with the possibility to review previous samples. The 'z' (explicit pause) can also be used to pause the live measurement. When pressing the 'z' again (continue after pause) viewing of the live measurement will be continued.
• Various corrections related to JSON output.
• Improved gathering of current CPU frequency.
• Support more than 500 CPUs.

General:

• The format of the raw file is incompatible with previous versions. Raw files from previous versions can be converted to the new layout with the atopconvert command.

v2.10.0

Modifications for atop:

• Additional memory statistics on system level: amount of available memory, amount of memory used for Transparant Huge Pages, amount of memory used by two categories of static huge pages (usually 2MiB and 1GiB), and the number of pages transferred to/from zswap.
• Additional counters for the number of idle threads on system level and process level.
• Refined view of memory bar graph, including free static huge pages.
• Generic way to determine the container id or pod name for containerized processes.
• Support for a BPF-based alternative for the netatop kernel module to gather network statistics per process/thread.
• Use the -z flag followed by a regex to prepend matching environment variables to the full command line that is shown per process (with key 'c').
• Various bugfixes (like memory leak when switching to bar graph mode) and minor improvements.

Modifications for atopsar:

• Bugfix: failing malloc while starting atopsar (unprivileged) for a live measurement.

New program atophide:

• The program atophide can be used to make an extraction from an input raw log to an output raw log, optionally specifying a begin time and/or an end time. The output raw log can be anonymized, i.e. the hostname will be replaced, command names of non-standard commands will be replaced, all command arguments will be wiped, logical volume names will be replaced and NFS mounted volume names will be replaced.

General:

• The format of the raw file is incompatible with previous versions. Raw files from previous versions can be converted to the new layout with the atopconvert command.