{#- A container's CPU and memory as service.usage() describes them (#5209).

    Docker counts CPU per core (100% = one core busy), so CPU reads as cores,
    toned by its share of the host's CPUs when the host's core count is known.
    Memory is what its processes hold, file cache left out (#6030), and
    reads in bytes, against a limit only when one is actually set;
    mem_pct is then a share of that limit, otherwise of the host's memory.
    Each is toned by usage()'s grade when it has one: within the container's
    own normal for the hour reads healthy, and says what is usual (#5742). -#}

{% macro cores(n) -%}
{{ "%.2f"|format(n) if n < 1 else "%.1f"|format(n) }} {{ "core" if n == 1 else "cores" }}
{%- endmacro %}

{% macro cpu(u) -%}
{%- if u.cores is none -%}<span class="tone-dim">—</span>
{%- else -%}
<span class="tone-{{ u.cpu_grade or status_class(u.cpu_share, 'cpu') }}"
      title="Docker counts CPU per core: {{ '%.0f'|format(u.cores * 100) }}% of one core{% if u.cpus %}, {{ '%.1f'|format(u.cpu_share) }}% of this host's {{ u.cpus }} core{{ 's' if u.cpus != 1 }}{% endif %}{% if u.cpu_usual %}; {{ u.cpu_usual }}{% endif %}">{{ cores(u.cores) }}</span>
{%- endif -%}
{%- endmacro %}

{% macro mem(u) -%}
{%- if u.mem_bytes is none -%}<span class="tone-dim">—</span>
{%- else -%}
<span class="tone-{{ u.mem_grade or (status_class(u.mem_pct, 'mem') if u.mem_of else 'dim') }}"
      title="{% if u.mem_pct is not none and u.mem_of %}{{ '%.1f'|format(u.mem_pct) }}% of {{ u.mem_of }}{% if u.mem_usual %}, {{ u.mem_usual }}{% endif %}{% else %}No memory limit set{% endif %}">{{ u.mem_bytes|bytes }}{% if u.mem_limit %} / {{ u.mem_limit|bytes }}{% endif %}</span>
{%- endif -%}
{%- endmacro %}