{#- 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 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 %}