dont chat shit about cadvisor

2 files changed, 5 insertions, 7 deletions

diff --git a/README.md b/README.md
index a2e8f39..5b38772 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,11 @@ The main reason for this to exist is my personal difficulties deploying cAdvisor
 cAdvisor is rather RAM-heavy, and it really does not need to be so.
 It also requires a plethora of different mounts to get working inside of a container, including /sys, or even the entire
 / filesystem, and in some cases must be ran as a privileged user!
-Even with this, it can often just completely fail to collect CPU usage data depending on your distro.
+
+This is mostly because cAdvisor actually collects statistics on *cgroups*, not specifically on docker containers.
+It does have specific integration for containerd, docker, and podman, but it will also happily report statistics about
+systemd services to Prometheus too!
+If you only want to support Docker, you need not bother with cgroups, as the Docker Engine can report all you need.
 
 I have previously used Beszel for my monitoring, and it's agent runs as an unprivileged user,
 needs access to only the docker socket, collects all data out of the box, and has a lightweight footprint.
diff --git a/output.txt b/output.txt
deleted file mode 100644
index 2645cb8..0000000
--- a/output.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-Connected to Docker Daemon version Some("28.0.4")
-Some(["/peaceful_dijkstra"])
-Stats { read: "2025-04-05T11:28:22.692535502Z", preread: "0001-01-01T00:00:00Z", num_procs: 0, pids_stats: PidsStats { current: Some(14), limit: Some(16617) }, network: None, networks: Some({"eth0": NetworkStats { rx_dropped: 0, rx_bytes: 73311, rx_errors: 0, tx_packets: 3, tx_dropped: 0, rx_packets: 846, tx_errors: 0, tx_bytes: 126 }}), memory_stats: MemoryStats { stats: Some(V2(MemoryStatsStatsV2 { anon: 22941696, file: 65019904, kernel_stack: 229376, slab: 354288, sock: 0, shmem: 0, file_mapped: 20066304, file_dirty: 0, file_writeback: 0, anon_thp: 20971520, inactive_anon: 921600, active_anon: 22020096, inactive_file: 67497984, active_file: 1331200, unevictable: 0, slab_reclaimable: 118400, slab_unreclaimable: 235888, pgfault: 6977, pgmajfault: 28, workingset_refault: 0, workingset_activate: 0, workingset_nodereclaim: 0, pgrefill: 73, pgscan: 7176, pgsteal: 6921, pgactivate: 82, pgdeactivate: 0, pglazyfree: 0, pglazyfreed: 0, thp_fault_alloc: 1, thp_collapse_alloc: 35 })), max_usage: None, usage: Some(92590080), failcnt: None, limit: Some(14602190848), commit: None, commit_peak: None, commitbytes: None, commitpeakbytes: None, privateworkingset: None }, blkio_stats: BlkioStats { io_service_bytes_recursive: Some([BlkioStatsEntry { major: 259, minor: 0, op: "read", value: 93347840 }, BlkioStatsEntry { major: 259, minor: 0, op: "write", value: 4096 }]), io_serviced_recursive: None, io_queue_recursive: None, io_service_time_recursive: None, io_wait_time_recursive: None, io_merged_recursive: None, io_time_recursive: None, sectors_recursive: None }, cpu_stats: CPUStats { cpu_usage: CPUUsage { percpu_usage: None, usage_in_usermode: 293061000, total_usage: 430277000, usage_in_kernelmode: 137215000 }, system_cpu_usage: Some(105448320000000), online_cpus: Some(8), throttling_data: ThrottlingData { periods: 0, throttled_periods: 0, throttled_time: 0 } }, precpu_stats: CPUStats { cpu_usage: CPUUsage { percpu_usage: None, usage_in_usermode: 0, total_usage: 0, usage_in_kernelmode: 0 }, system_cpu_usage: None, online_cpus: None, throttling_data: ThrottlingData { periods: 0, throttled_periods: 0, throttled_time: 0 } }, storage_stats: StorageStats { read_count_normalized: None, read_size_bytes: None, write_count_normalized: None, write_size_bytes: None }, name: "/peaceful_dijkstra", id: "3379e4311956bf383ee055667820f5c9c4790f274c4cd2608f8e4af2eb5e36c7" }
-Stats { read: "2025-04-05T11:28:23.695024439Z", preread: "2025-04-05T11:28:22.692535502Z", num_procs: 0, pids_stats: PidsStats { current: Some(14), limit: Some(16617) }, network: None, networks: Some({"eth0": NetworkStats { rx_dropped: 0, rx_bytes: 73390, rx_errors: 0, tx_packets: 3, tx_dropped: 0, rx_packets: 847, tx_errors: 0, tx_bytes: 126 }}), memory_stats: MemoryStats { stats: Some(V2(MemoryStatsStatsV2 { anon: 22941696, file: 65019904, kernel_stack: 229376, slab: 354288, sock: 0, shmem: 0, file_mapped: 20066304, file_dirty: 0, file_writeback: 0, anon_thp: 20971520, inactive_anon: 921600, active_anon: 22020096, inactive_file: 67497984, active_file: 1331200, unevictable: 0, slab_reclaimable: 118400, slab_unreclaimable: 235888, pgfault: 6977, pgmajfault: 28, workingset_refault: 0, workingset_activate: 0, workingset_nodereclaim: 0, pgrefill: 73, pgscan: 7176, pgsteal: 6921, pgactivate: 82, pgdeactivate: 0, pglazyfree: 0, pglazyfreed: 0, thp_fault_alloc: 1, thp_collapse_alloc: 35 })), max_usage: None, usage: Some(92590080), failcnt: None, limit: Some(14602190848), commit: None, commit_peak: None, commitbytes: None, commitpeakbytes: None, privateworkingset: None }, blkio_stats: BlkioStats { io_service_bytes_recursive: Some([BlkioStatsEntry { major: 259, minor: 0, op: "read", value: 93347840 }, BlkioStatsEntry { major: 259, minor: 0, op: "write", value: 4096 }]), io_serviced_recursive: None, io_queue_recursive: None, io_service_time_recursive: None, io_wait_time_recursive: None, io_merged_recursive: None, io_time_recursive: None, sectors_recursive: None }, cpu_stats: CPUStats { cpu_usage: CPUUsage { percpu_usage: None, usage_in_usermode: 293061000, total_usage: 430277000, usage_in_kernelmode: 137215000 }, system_cpu_usage: Some(105456300000000), online_cpus: Some(8), throttling_data: ThrottlingData { periods: 0, throttled_periods: 0, throttled_time: 0 } }, precpu_stats: CPUStats { cpu_usage: CPUUsage { percpu_usage: None, usage_in_usermode: 293061000, total_usage: 430277000, usage_in_kernelmode: 137215000 }, system_cpu_usage: Some(105448320000000), online_cpus: Some(8), throttling_data: ThrottlingData { periods: 0, throttled_periods: 0, throttled_time: 0 } }, storage_stats: StorageStats { read_count_normalized: None, read_size_bytes: None, write_count_normalized: None, write_size_bytes: None }, name: "/peaceful_dijkstra", id: "3379e4311956bf383ee055667820f5c9c4790f274c4cd2608f8e4af2eb5e36c7" }
-Stats { read: "2025-04-05T11:28:24.698495438Z", preread: "2025-04-05T11:28:23.695024439Z", num_procs: 0, pids_stats: PidsStats { current: Some(14), limit: Some(16617) }, network: None, networks: Some({"eth0": NetworkStats { rx_dropped: 0, rx_bytes: 73390, rx_errors: 0, tx_packets: 3, tx_dropped: 0, rx_packets: 847, tx_errors: 0, tx_bytes: 126 }}), memory_stats: MemoryStats { stats: Some(V2(MemoryStatsStatsV2 { anon: 22941696, file: 65019904, kernel_stack: 229376, slab: 354288, sock: 0, shmem: 0, file_mapped: 20066304, file_dirty: 0, file_writeback: 0, anon_thp: 20971520, inactive_anon: 921600, active_anon: 22020096, inactive_file: 67497984, active_file: 1331200, unevictable: 0, slab_reclaimable: 118400, slab_unreclaimable: 235888, pgfault: 6977, pgmajfault: 28, workingset_refault: 0, workingset_activate: 0, workingset_nodereclaim: 0, pgrefill: 73, pgscan: 7176, pgsteal: 6921, pgactivate: 82, pgdeactivate: 0, pglazyfree: 0, pglazyfreed: 0, thp_fault_alloc: 1, thp_collapse_alloc: 35 })), max_usage: None, usage: Some(92590080), failcnt: None, limit: Some(14602190848), commit: None, commit_peak: None, commitbytes: None, commitpeakbytes: None, privateworkingset: None }, blkio_stats: BlkioStats { io_service_bytes_recursive: Some([BlkioStatsEntry { major: 259, minor: 0, op: "read", value: 93347840 }, BlkioStatsEntry { major: 259, minor: 0, op: "write", value: 4096 }]), io_serviced_recursive: None, io_queue_recursive: None, io_service_time_recursive: None, io_wait_time_recursive: None, io_merged_recursive: None, io_time_recursive: None, sectors_recursive: None }, cpu_stats: CPUStats { cpu_usage: CPUUsage { percpu_usage: None, usage_in_usermode: 293061000, total_usage: 430277000, usage_in_kernelmode: 137215000 }, system_cpu_usage: Some(105464360000000), online_cpus: Some(8), throttling_data: ThrottlingData { periods: 0, throttled_periods: 0, throttled_time: 0 } }, precpu_stats: CPUStats { cpu_usage: CPUUsage { percpu_usage: None, usage_in_usermode: 293061000, total_usage: 430277000, usage_in_kernelmode: 137215000 }, system_cpu_usage: Some(105456300000000), online_cpus: Some(8), throttling_data: ThrottlingData { periods: 0, throttled_periods: 0, throttled_time: 0 } }, storage_stats: StorageStats { read_count_normalized: None, read_size_bytes: None, write_count_normalized: None, write_size_bytes: None }, name: "/peaceful_dijkstra", id: "3379e4311956bf383ee055667820f5c9c4790f274c4cd2608f8e4af2eb5e36c7" }
-Stats { read: "2025-04-05T11:28:25.700769535Z", preread: "2025-04-05T11:28:24.698495438Z", num_procs: 0, pids_stats: PidsStats { current: Some(14), limit: Some(16617) }, network: None, networks: Some({"eth0": NetworkStats { rx_dropped: 0, rx_bytes: 73469, rx_errors: 0, tx_packets: 3, tx_dropped: 0, rx_packets: 848, tx_errors: 0, tx_bytes: 126 }}), memory_stats: MemoryStats { stats: Some(V2(MemoryStatsStatsV2 { anon: 22941696, file: 65019904, kernel_stack: 229376, slab: 354288, sock: 0, shmem: 0, file_mapped: 20066304, file_dirty: 0, file_writeback: 0, anon_thp: 20971520, inactive_anon: 921600, active_anon: 22020096, inactive_file: 67497984, active_file: 1331200, unevictable: 0, slab_reclaimable: 118400, slab_unreclaimable: 235888, pgfault: 6977, pgmajfault: 28, workingset_refault: 0, workingset_activate: 0, workingset_nodereclaim: 0, pgrefill: 73, pgscan: 7176, pgsteal: 6921, pgactivate: 82, pgdeactivate: 0, pglazyfree: 0, pglazyfreed: 0, thp_fault_alloc: 1, thp_collapse_alloc: 35 })), max_usage: None, usage: Some(92590080), failcnt: None, limit: Some(14602190848), commit: None, commit_peak: None, commitbytes: None, commitpeakbytes: None, privateworkingset: None }, blkio_stats: BlkioStats { io_service_bytes_recursive: Some([BlkioStatsEntry { major: 259, minor: 0, op: "read", value: 93347840 }, BlkioStatsEntry { major: 259, minor: 0, op: "write", value: 4096 }]), io_serviced_recursive: None, io_queue_recursive: None, io_service_time_recursive: None, io_wait_time_recursive: None, io_merged_recursive: None, io_time_recursive: None, sectors_recursive: None }, cpu_stats: CPUStats { cpu_usage: CPUUsage { percpu_usage: None, usage_in_usermode: 293061000, total_usage: 430277000, usage_in_kernelmode: 137215000 }, system_cpu_usage: Some(105472350000000), online_cpus: Some(8), throttling_data: ThrottlingData { periods: 0, throttled_periods: 0, throttled_time: 0 } }, precpu_stats: CPUStats { cpu_usage: CPUUsage { percpu_usage: None, usage_in_usermode: 293061000, total_usage: 430277000, usage_in_kernelmode: 137215000 }, system_cpu_usage: Some(105464360000000), online_cpus: Some(8), throttling_data: ThrottlingData { periods: 0, throttled_periods: 0, throttled_time: 0 } }, storage_stats: StorageStats { read_count_normalized: None, read_size_bytes: None, write_count_normalized: None, write_size_bytes: None }, name: "/peaceful_dijkstra", id: "3379e4311956bf383ee055667820f5c9c4790f274c4cd2608f8e4af2eb5e36c7" }