{ "title": "Next Term vs IDEs and editors: size, processes, idle memory and CPU (macOS, October 2026)", "method_and_caveats": "https://nxtrm.mishuk.me/compare/benchmark/", "measured_on": "2026-10-10/11", "units": "Memory in MiB (2^20 bytes; what Activity Monitor labels MB). Download/on-disk sizes in MB (10^6 bytes, as Finder shows). CPU in percent of one core.", "scenario": "The same small TypeScript project (demo-acme-api: four source files and a test, package.json, tsconfig.json, a git repo) open in the app, 3 integrated-terminal tabs each running an idle zsh, nothing else open, app left idle. Shells and anything inside them are excluded from every total; only the app's own processes count (helpers, renderers, extension hosts, JVM, language servers, and XPC services/daemons macOS attributes to the app).", "environment": { "mac_model_identifier": "Mac15,6", "mac_model": "MacBook Pro 14-inch (Nov 2023)", "chip": "Apple M3 Pro", "cpu_cores": 11, "cpu_cores_perf_eff": [ 5, 6 ], "ram_bytes": 19327352832, "ram_gb": 18, "macos": "26.5.2 (25F84)", "disk_free_during_run": "2.4-3.5 GB free of 460 GB (the volume was ~100% full)", "swap_used_during_run": "7.7-8.0 GB of 9.2 GB", "load_average_during_runs": "1-min load average between 3.6 and 43 (the owner was running Swift builds and coding agents on the same Mac); recorded with every sample", "other_running_software": "owner's normal session: iTerm2 with several coding-agent sessions, Next Term (idle), browsers; never touched", "apps": { "Next Term": { "version": "0.10.1", "build": "1035" }, "Cursor": { "version": "3.23.23", "vscode_base": "1.128.0", "electron_universal": true }, "PhpStorm": { "version": "2026.1.1", "build": "PS-261.23567.149" }, "Zed": { "version": "1.22.0", "build": "20260930.150108" }, "Sublime Text": { "version": "Build 4215" }, "iTerm2": { "version": "3.7.3" } } }, "headline": [ { "app": "Next Term", "version": "0.10.1", "download_bytes": 20314120, "download_mb": 20.3, "download_file": "NextTerm-0.10.1.dmg", "on_disk_mb": 44.4, "processes": 2, "memory_mib_at_60s": 159.9, "memory_mib_late": 119.8, "idle_cpu_percent_60_120s": 1.031, "idle_cpu_percent_late": 0.311, "wakeups_per_s_60_120s": 6.7, "wakeups_per_s_late": 6.0 }, { "app": "Cursor", "version": "3.23.23", "download_bytes": 458608803, "download_mb": 458.6, "download_file": "Cursor-darwin-universal.dmg (current 3.24.12)", "on_disk_mb": 1449.7, "processes": 19, "memory_mib_at_60s": 1503.7, "memory_mib_late": 1441.0, "idle_cpu_percent_60_120s": 10.428, "idle_cpu_percent_late": 9.171, "wakeups_per_s_60_120s": 651.6, "wakeups_per_s_late": 656.4 }, { "app": "PhpStorm", "version": "2026.1.1", "download_bytes": 1001478054, "download_mb": 1001.5, "download_file": "PhpStorm-2026.1.1-aarch64.dmg", "on_disk_mb": 2982.7, "processes": 3, "memory_mib_at_60s": 1869.9, "memory_mib_late": 1874.5, "idle_cpu_percent_60_120s": 12.411, "idle_cpu_percent_late": 7.866, "wakeups_per_s_60_120s": 94.8, "wakeups_per_s_late": 104.3 }, { "app": "Zed", "version": "1.22.0", "download_bytes": 118479739, "download_mb": 118.5, "download_file": "Zed-aarch64.dmg (v1.22.0)", "on_disk_mb": 268.0, "processes": 2, "memory_mib_at_60s": 153.4, "memory_mib_late": 153.3, "idle_cpu_percent_60_120s": 0.344, "idle_cpu_percent_late": 0.371, "wakeups_per_s_60_120s": 174.6, "wakeups_per_s_late": 175.7 }, { "app": "Sublime Text", "version": "Build 4215", "download_bytes": 53301345, "download_mb": 53.3, "download_file": "sublime_text_build_4215_mac.zip", "on_disk_mb": 146.6, "processes": 4, "memory_mib_at_60s": 170.9, "memory_mib_late": 169.2, "idle_cpu_percent_60_120s": 0.009, "idle_cpu_percent_late": 0.004, "wakeups_per_s_60_120s": 0.4, "wakeups_per_s_late": 0.4 } ], "ratios_vs_next_term": { "Cursor": { "download": 22.6, "on_disk": 32.7, "memory_at_60s": 9.4, "memory_at_60s_counting_mcp_bridges": 8.9 }, "PhpStorm": { "download": 49.3, "on_disk": 67.2, "memory_at_60s": 11.7, "memory_at_60s_counting_mcp_bridges": 11.0 }, "Zed": { "download": 5.8, "on_disk": 6.0, "memory_at_60s": 1.0, "memory_at_60s_counting_mcp_bridges": 0.9 }, "Sublime Text": { "download": 2.6, "on_disk": 3.3, "memory_at_60s": 1.1, "memory_at_60s_counting_mcp_bridges": 1.0 } }, "next_term_detail": { "instance": "An already-running Next Term 0.10.1 (started ~47 min before the run, previously used; not restarted). Before the run it had only its Welcome window open (no project windows).", "baseline_welcome_window_only": { "label": "nextterm-asis", "started": "2026-10-10T23:08:47", "first_sample": "2026-10-10T23:09:47", "memory_footprint_median_mib": 96.5, "memory_footprint_median_mb": 101.2, "memory_footprint_samples_mib": [ 96.4, 96.5, 96.5 ], "footprint_tool_crosscheck_mib": 96.4, "resident_rss_median_mib": 58.4, "ps_rss_median_mib": 58.4, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 0.086, "wakeups_per_s": 2.0, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 11.26, 42.47, 38.53 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 35.7, "wakeups": 109, "footprint_mib": 84.4 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 16.0, "wakeups": 9, "footprint_mib": 12.1 } ], "note": "Owner's running instance as it is: no project windows, only the Welcome window (900x580). Read-only." }, "demo_3_tabs_at_60s": { "label": "nextterm-demo-3tabs", "started": "2026-10-10T23:11:15", "first_sample": "2026-10-10T23:12:15", "memory_footprint_median_mib": 159.9, "memory_footprint_median_mb": 167.7, "memory_footprint_samples_mib": [ 159.9, 159.9, 150.3 ], "footprint_tool_crosscheck_mib": 119.8, "resident_rss_median_mib": 73.0, "ps_rss_median_mib": 73.0, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 1.031, "wakeups_per_s": 6.7, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "warning" ], "load_average_1min_at_samples": [ 20.91, 17.4, 27.5 ], "excluded_shell_processes": 3, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 585.5, "wakeups": 383, "footprint_mib": 107.8 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 33.0, "wakeups": 19, "footprint_mib": 12.1 } ], "note": "Owner's running instance after opening the demo folder with 3 tabs via mcp new_tab (one project window 1100x720, Welcome window closed by it). 3 idle login zsh excluded." }, "demo_3_tabs_late": { "label": "nextterm-demo-3tabs-late", "started": "2026-10-10T23:13:43", "first_sample": "2026-10-10T23:13:43", "memory_footprint_median_mib": 119.8, "memory_footprint_median_mb": 125.6, "memory_footprint_samples_mib": [ 119.8, 119.8, 119.8 ], "footprint_tool_crosscheck_mib": 119.7, "resident_rss_median_mib": 78.4, "ps_rss_median_mib": 78.4, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 0.311, "wakeups_per_s": 6.0, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "warning", "normal" ], "load_average_1min_at_samples": [ 22.06, 17.59, 13.94 ], "excluded_shell_processes": 3, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 141.8, "wakeups": 358, "footprint_mib": 107.7 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 44.6, "wakeups": 1, "footprint_mib": 12.1 } ], "note": "Same 3-tab demo window, second run starting ~3 min after the tabs opened (tabs opened ~23:11:10)." }, "after_closing_the_3_tabs": { "label": "nextterm-after-close", "started": "2026-10-10T23:18:21", "first_sample": "2026-10-10T23:19:21", "memory_footprint_median_mib": 117.0, "memory_footprint_median_mb": 122.7, "memory_footprint_samples_mib": [ 117.0, 117.0, 117.0 ], "footprint_tool_crosscheck_mib": 116.9, "resident_rss_median_mib": 68.3, "ps_rss_median_mib": 68.3, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 0.059, "wakeups_per_s": 1.8, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 6.07, 8.47, 10.42 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 35.3, "wakeups": 110, "footprint_mib": 104.9 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 12.1 } ], "note": "After closing the 3 benchmark tabs (window closed, Welcome window back)." }, "end_of_session_about_70min_later": { "label": "nextterm-asis-end", "started": "2026-10-11T00:27:46", "first_sample": "2026-10-11T00:27:46", "memory_footprint_median_mib": 96.5, "memory_footprint_median_mb": 101.2, "memory_footprint_samples_mib": [ 96.5, 96.5, 96.5 ], "footprint_tool_crosscheck_mib": 96.4, "resident_rss_median_mib": 77.5, "ps_rss_median_mib": 77.5, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 0.087, "wakeups_per_s": 2.2, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 9.8, 8.17, 6.54 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 41.4, "wakeups": 122, "footprint_mib": 84.4 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 10.5, "wakeups": 8, "footprint_mib": 12.1 } ], "note": "Owner's running instance at the end of the session (~70 min after the benchmark tabs were closed): Welcome window only. Read-only." }, "mcp_cli_helpers_listed_separately": { "what": "'NextTerm --cli mcp' processes are started by each coding agent's MCP client (children of the agent, not of Next Term); one per connected agent session. Not counted in Next Term's total.", "count_seen": 3, "footprint_mib_each": [ 3.1, 3.2, 3.2 ] } }, "runs": { "nextterm_asis": { "label": "nextterm-asis", "started": "2026-10-10T23:08:47", "first_sample": "2026-10-10T23:09:47", "memory_footprint_median_mib": 96.5, "memory_footprint_median_mb": 101.2, "memory_footprint_samples_mib": [ 96.4, 96.5, 96.5 ], "footprint_tool_crosscheck_mib": 96.4, "resident_rss_median_mib": 58.4, "ps_rss_median_mib": 58.4, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 0.086, "wakeups_per_s": 2.0, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 11.26, 42.47, 38.53 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 35.7, "wakeups": 109, "footprint_mib": 84.4 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 16.0, "wakeups": 9, "footprint_mib": 12.1 } ], "note": "Owner's running instance as it is: no project windows, only the Welcome window (900x580). Read-only." }, "nextterm_3tabs": { "label": "nextterm-demo-3tabs", "started": "2026-10-10T23:11:15", "first_sample": "2026-10-10T23:12:15", "memory_footprint_median_mib": 159.9, "memory_footprint_median_mb": 167.7, "memory_footprint_samples_mib": [ 159.9, 159.9, 150.3 ], "footprint_tool_crosscheck_mib": 119.8, "resident_rss_median_mib": 73.0, "ps_rss_median_mib": 73.0, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 1.031, "wakeups_per_s": 6.7, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "warning" ], "load_average_1min_at_samples": [ 20.91, 17.4, 27.5 ], "excluded_shell_processes": 3, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 585.5, "wakeups": 383, "footprint_mib": 107.8 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 33.0, "wakeups": 19, "footprint_mib": 12.1 } ], "note": "Owner's running instance after opening the demo folder with 3 tabs via mcp new_tab (one project window 1100x720, Welcome window closed by it). 3 idle login zsh excluded." }, "nextterm_3tabs_late": { "label": "nextterm-demo-3tabs-late", "started": "2026-10-10T23:13:43", "first_sample": "2026-10-10T23:13:43", "memory_footprint_median_mib": 119.8, "memory_footprint_median_mb": 125.6, "memory_footprint_samples_mib": [ 119.8, 119.8, 119.8 ], "footprint_tool_crosscheck_mib": 119.7, "resident_rss_median_mib": 78.4, "ps_rss_median_mib": 78.4, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 0.311, "wakeups_per_s": 6.0, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "warning", "normal" ], "load_average_1min_at_samples": [ 22.06, 17.59, 13.94 ], "excluded_shell_processes": 3, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 141.8, "wakeups": 358, "footprint_mib": 107.7 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 44.6, "wakeups": 1, "footprint_mib": 12.1 } ], "note": "Same 3-tab demo window, second run starting ~3 min after the tabs opened (tabs opened ~23:11:10)." }, "nextterm_after_close": { "label": "nextterm-after-close", "started": "2026-10-10T23:18:21", "first_sample": "2026-10-10T23:19:21", "memory_footprint_median_mib": 117.0, "memory_footprint_median_mb": 122.7, "memory_footprint_samples_mib": [ 117.0, 117.0, 117.0 ], "footprint_tool_crosscheck_mib": 116.9, "resident_rss_median_mib": 68.3, "ps_rss_median_mib": 68.3, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 0.059, "wakeups_per_s": 1.8, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 6.07, 8.47, 10.42 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 35.3, "wakeups": 110, "footprint_mib": 104.9 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 12.1 } ], "note": "After closing the 3 benchmark tabs (window closed, Welcome window back)." }, "nextterm_asis_end": { "label": "nextterm-asis-end", "started": "2026-10-11T00:27:46", "first_sample": "2026-10-11T00:27:46", "memory_footprint_median_mib": 96.5, "memory_footprint_median_mb": 101.2, "memory_footprint_samples_mib": [ 96.5, 96.5, 96.5 ], "footprint_tool_crosscheck_mib": 96.4, "resident_rss_median_mib": 77.5, "ps_rss_median_mib": 77.5, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "NextTerm": 1, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1 }, "idle_cpu_percent_of_one_core": 0.087, "wakeups_per_s": 2.2, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 9.8, 8.17, 6.54 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 12923, "kind": "NextTerm", "cpu_ms": 41.4, "wakeups": 122, "footprint_mib": 84.4 }, { "pid": 12987, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 10.5, "wakeups": 8, "footprint_mib": 12.1 } ], "note": "Owner's running instance at the end of the session (~70 min after the benchmark tabs were closed): Welcome window only. Read-only." }, "cursor_3tabs": { "label": "cursor-demo-3tabs", "started": "2026-10-10T23:33:41", "first_sample": "2026-10-10T23:34:36", "memory_footprint_median_mib": 1503.7, "memory_footprint_median_mb": 1576.7, "memory_footprint_samples_mib": [ 1503.7, 1505.7, 1489.1 ], "footprint_tool_crosscheck_mib": 1462.5, "resident_rss_median_mib": 1503.2, "ps_rss_median_mib": 1503.2, "process_count": 19, "process_count_per_sample": [ 19, 19, 19, 19 ], "processes_by_kind": { "Cursor": 1, "chrome_crashpad_handler": 1, "gpu-process": 1, "utility:NetworkService": 1, "Cursor Helper": 3, "renderer": 1, "Cursor Helper (Plugin)": 6, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1, "fileWatcher": 1, "utility:AudioService": 1, "system-xpc:com.apple.audio.SandboxHelper": 1, "system-xpc:MTLCompilerService": 1 }, "idle_cpu_percent_of_one_core": 10.428, "wakeups_per_s": 651.6, "cpu_window_s": 60.01, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 4.03, 3.61, 4.05 ], "excluded_shell_processes": 4, "per_process": [ { "pid": 25989, "kind": "renderer", "cpu_ms": 2703.5, "wakeups": 10642, "footprint_mib": 340.4 }, { "pid": 26025, "kind": "Cursor Helper (Plugin)", "cpu_ms": 621.7, "wakeups": 6597, "footprint_mib": 184.0 }, { "pid": 26021, "kind": "Cursor Helper (Plugin)", "cpu_ms": 740.6, "wakeups": 6603, "footprint_mib": 170.3 }, { "pid": 26026, "kind": "Cursor Helper (Plugin)", "cpu_ms": 705.7, "wakeups": 6602, "footprint_mib": 128.4 }, { "pid": 25965, "kind": "Cursor", "cpu_ms": 231.8, "wakeups": 313, "footprint_mib": 126.9 }, { "pid": 25982, "kind": "gpu-process", "cpu_ms": 17.8, "wakeups": 55, "footprint_mib": 120.8 }, { "pid": 26024, "kind": "Cursor Helper (Plugin)", "cpu_ms": 692.6, "wakeups": 6616, "footprint_mib": 100.4 }, { "pid": 26012, "kind": "Cursor Helper", "cpu_ms": 9.0, "wakeups": 52, "footprint_mib": 84.1 }, { "pid": 25987, "kind": "Cursor Helper", "cpu_ms": 15.2, "wakeups": 37, "footprint_mib": 50.8 }, { "pid": 26190, "kind": "Cursor Helper", "cpu_ms": 463.7, "wakeups": 1376, "footprint_mib": 40.8 }, { "pid": 26028, "kind": "fileWatcher", "cpu_ms": 22.1, "wakeups": 104, "footprint_mib": 30.1 }, { "pid": 26189, "kind": "system-xpc:MTLCompilerService", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 19.5 }, { "pid": 26385, "kind": "Cursor Helper (Plugin)", "cpu_ms": 5.4, "wakeups": 56, "footprint_mib": 18.8 }, { "pid": 26124, "kind": "Cursor Helper (Plugin)", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 13.0 }, { "pid": 26027, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 3.7, "wakeups": 2, "footprint_mib": 12.2 }, { "pid": 26029, "kind": "utility:AudioService", "cpu_ms": 7.4, "wakeups": 22, "footprint_mib": 9.1 }, { "pid": 25984, "kind": "utility:NetworkService", "cpu_ms": 17.0, "wakeups": 23, "footprint_mib": 7.8 }, { "pid": 26030, "kind": "system-xpc:com.apple.audio.SandboxHelper", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 2.9 }, { "pid": 25981, "kind": "chrome_crashpad_handler", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 2.8 } ], "note": "Fresh isolated profile (flags in METHOD.md), classic editor window 1280x800 with the demo folder, default layout (Agent side panel open), 3 integrated terminals (process tasks running /bin/zsh -l) + 1 shell Cursor's agent-exec host pre-spawns (/bin/zsh -il); all 4 shells excluded. Launched with open -g -j but Cursor showed its window anyway. Ready 23:33:31." }, "cursor_3tabs_late": { "label": "cursor-demo-3tabs-late", "started": "2026-10-10T23:36:03", "first_sample": "2026-10-10T23:36:30", "memory_footprint_median_mib": 1441.0, "memory_footprint_median_mb": 1511.0, "memory_footprint_samples_mib": [ 1432.4, 1619.8, 1441.0 ], "footprint_tool_crosscheck_mib": 1441.8, "resident_rss_median_mib": 1452.7, "ps_rss_median_mib": 1452.8, "process_count": 19, "process_count_per_sample": [ 19, 19, 19, 19 ], "processes_by_kind": { "Cursor": 1, "chrome_crashpad_handler": 1, "gpu-process": 1, "utility:NetworkService": 1, "Cursor Helper": 3, "renderer": 1, "Cursor Helper (Plugin)": 6, "system-xpc:com.apple.SafariPlatformSupport.Helper": 1, "fileWatcher": 1, "utility:AudioService": 1, "system-xpc:com.apple.audio.SandboxHelper": 1, "system-xpc:MTLCompilerService": 1 }, "idle_cpu_percent_of_one_core": 9.171, "wakeups_per_s": 656.4, "cpu_window_s": 60.01, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 3.93, 4.01, 4.16 ], "excluded_shell_processes": 4, "per_process": [ { "pid": 25989, "kind": "renderer", "cpu_ms": 1809.9, "wakeups": 10675, "footprint_mib": 340.2 }, { "pid": 26021, "kind": "Cursor Helper (Plugin)", "cpu_ms": 680.9, "wakeups": 6511, "footprint_mib": 169.7 }, { "pid": 26025, "kind": "Cursor Helper (Plugin)", "cpu_ms": 797.5, "wakeups": 6524, "footprint_mib": 162.8 }, { "pid": 25965, "kind": "Cursor", "cpu_ms": 268.7, "wakeups": 366, "footprint_mib": 129.3 }, { "pid": 26026, "kind": "Cursor Helper (Plugin)", "cpu_ms": 662.9, "wakeups": 6546, "footprint_mib": 127.6 }, { "pid": 25982, "kind": "gpu-process", "cpu_ms": 302.4, "wakeups": 1158, "footprint_mib": 120.8 }, { "pid": 26024, "kind": "Cursor Helper (Plugin)", "cpu_ms": 636.2, "wakeups": 6467, "footprint_mib": 99.5 }, { "pid": 26012, "kind": "Cursor Helper", "cpu_ms": 12.9, "wakeups": 54, "footprint_mib": 84.1 }, { "pid": 25987, "kind": "Cursor Helper", "cpu_ms": 16.3, "wakeups": 34, "footprint_mib": 51.1 }, { "pid": 26190, "kind": "Cursor Helper", "cpu_ms": 256.9, "wakeups": 852, "footprint_mib": 40.9 }, { "pid": 26028, "kind": "fileWatcher", "cpu_ms": 20.4, "wakeups": 94, "footprint_mib": 30.1 }, { "pid": 26189, "kind": "system-xpc:MTLCompilerService", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 19.5 }, { "pid": 26385, "kind": "Cursor Helper (Plugin)", "cpu_ms": 8.2, "wakeups": 58, "footprint_mib": 18.9 }, { "pid": 26124, "kind": "Cursor Helper (Plugin)", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 13.0 }, { "pid": 26027, "kind": "system-xpc:com.apple.SafariPlatformSupport.Helper", "cpu_ms": 12.5, "wakeups": 6, "footprint_mib": 12.2 }, { "pid": 26029, "kind": "utility:AudioService", "cpu_ms": 8.0, "wakeups": 19, "footprint_mib": 9.1 }, { "pid": 25984, "kind": "utility:NetworkService", "cpu_ms": 9.4, "wakeups": 21, "footprint_mib": 7.9 }, { "pid": 26030, "kind": "system-xpc:com.apple.audio.SandboxHelper", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 2.9 }, { "pid": 25981, "kind": "chrome_crashpad_handler", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 2.8 } ], "note": "Same Cursor window, second run starting 180 s after ready (23:33:31)." }, "phpstorm_3tabs": { "label": "phpstorm-demo-3tabs", "started": "2026-10-11T00:16:15", "first_sample": "2026-10-11T00:16:35", "memory_footprint_median_mib": 1869.9, "memory_footprint_median_mb": 1960.7, "memory_footprint_samples_mib": [ 1850.8, 1869.9, 1870.4 ], "footprint_tool_crosscheck_mib": 1871.6, "resident_rss_median_mib": 309.5, "ps_rss_median_mib": 309.3, "process_count": 3, "process_count_per_sample": [ 3, 3, 3, 3 ], "processes_by_kind": { "phpstorm": 1, "fsnotifier": 1, "attributed:jetbrainsd": 1 }, "idle_cpu_percent_of_one_core": 12.411, "wakeups_per_s": 94.8, "cpu_window_s": 60.01, "memory_pressure_at_samples": [ "warning", "warning", "normal" ], "load_average_1min_at_samples": [ 25.71, 32.25, 25.84 ], "excluded_shell_processes": 1, "per_process": [ { "pid": 3344, "kind": "phpstorm", "cpu_ms": 7387.3, "wakeups": 5514, "footprint_mib": 1851.1 }, { "pid": 3456, "kind": "attributed:jetbrainsd", "cpu_ms": 30.2, "wakeups": 172, "footprint_mib": 16.8 }, { "pid": 3374, "kind": "fsnotifier", "cpu_ms": 29.8, "wakeups": 0, "footprint_mib": 3.9 } ], "note": "Isolated profile (temp config/system/plugins/log paths, temp user.home, bundled default VM options). Launch 8 of this profile (indexes and shared indexes already built, What's New already seen, no editors open). App launched hidden (open -j) and stayed hidden. Project window 1400x1000 with Project view + Terminal tool window holding 3 restored tabs; PhpStorm starts the shell of the visible tab only, so 1 live shell (/bin/zsh --login -i, excluded). jetbrainsd (attributed to PhpStorm by macOS) counted. Ready 00:15:35." }, "phpstorm_3tabs_late": { "label": "phpstorm-demo-3tabs-late", "started": "2026-10-11T00:17:46", "first_sample": "2026-10-11T00:18:35", "memory_footprint_median_mib": 1874.5, "memory_footprint_median_mb": 1965.6, "memory_footprint_samples_mib": [ 1873.1, 1874.9, 1874.5 ], "footprint_tool_crosscheck_mib": 1874.7, "resident_rss_median_mib": 401.1, "ps_rss_median_mib": 401.1, "process_count": 4, "process_count_per_sample": [ 4, 3, 3, 3 ], "processes_by_kind": { "phpstorm": 1, "fsnotifier": 1, "attributed:jetbrainsd": 1 }, "idle_cpu_percent_of_one_core": 7.866, "wakeups_per_s": 104.3, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 32.69, 24.76, 19.3 ], "excluded_shell_processes": 1, "per_process": [ { "pid": 3344, "kind": "phpstorm", "cpu_ms": 4675.4, "wakeups": 6090, "footprint_mib": 1853.6 }, { "pid": 3456, "kind": "attributed:jetbrainsd", "cpu_ms": 27.7, "wakeups": 167, "footprint_mib": 17.3 }, { "pid": 3374, "kind": "fsnotifier", "cpu_ms": 16.6, "wakeups": 0, "footprint_mib": 3.9 } ], "note": "Same PhpStorm window, second run starting 180 s after ready (00:15:35)." }, "phpstorm_folder_0tabs_first_launch": { "label": "phpstorm-folder-0tabs", "started": "2026-10-10T23:56:42", "first_sample": "2026-10-10T23:56:42", "memory_footprint_median_mib": 2055.5, "memory_footprint_median_mb": 2155.3, "memory_footprint_samples_mib": [ 2055.3, 2055.5, 2055.7 ], "footprint_tool_crosscheck_mib": 2055.7, "resident_rss_median_mib": 148.6, "ps_rss_median_mib": 148.6, "process_count": 3, "process_count_per_sample": [ 3, 3, 4, 3 ], "processes_by_kind": { "phpstorm": 1, "fsnotifier": 1, "attributed:jetbrainsd": 1 }, "idle_cpu_percent_of_one_core": 3.969, "wakeups_per_s": 150.0, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "warning", "normal", "normal" ], "load_average_1min_at_samples": [ 32.71, 26.03, 27.8 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 53942, "kind": "phpstorm", "cpu_ms": 2310.9, "wakeups": 8850, "footprint_mib": 2033.1 }, { "pid": 54425, "kind": "attributed:jetbrainsd", "cpu_ms": 31.9, "wakeups": 153, "footprint_mib": 18.3 }, { "pid": 54124, "kind": "fsnotifier", "cpu_ms": 38.6, "wakeups": 0, "footprint_mib": 4.4 } ], "note": "Secondary data point: isolated PhpStorm (first launch, app hidden with open -j), project window 1400x1000 with the demo folder and the Project view, NO terminal tool window yet. Started 23:49:13; measured ~8 min later. Includes jetbrainsd (attributed to PhpStorm by macOS)." }, "zed_3tabs": { "label": "zed-demo-3tabs", "started": "2026-10-10T23:44:55", "first_sample": "2026-10-10T23:44:55", "memory_footprint_median_mib": 153.4, "memory_footprint_median_mb": 160.9, "memory_footprint_samples_mib": [ 153.4, 153.4, 153.3 ], "footprint_tool_crosscheck_mib": 153.2, "resident_rss_median_mib": 142.8, "ps_rss_median_mib": 142.8, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "zed": 2 }, "idle_cpu_percent_of_one_core": 0.344, "wakeups_per_s": 174.6, "cpu_window_s": 60.01, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 26.32, 22.5, 23.04 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 38649, "kind": "zed", "cpu_ms": 82.7, "wakeups": 579, "footprint_mib": 144.3 }, { "pid": 38653, "kind": "zed", "cpu_ms": 123.6, "wakeups": 9896, "footprint_mib": 9.0 } ], "note": "Isolated profile (temp HOME + --user-data-dir, ZED_SERVER_URL to a closed local port so no sign-in/updates), window 1536x1095 with the demo folder, project panel + terminal panel with 3 terminals restored from Zed's own session DB (each /usr/bin/login -> -zsh, excluded). Ready (3 shells started) 23:43:22; first sample ~85 s after ready (not 60 s)." }, "zed_3tabs_late": { "label": "zed-demo-3tabs-late", "started": "2026-10-10T23:46:41", "first_sample": "2026-10-10T23:46:41", "memory_footprint_median_mib": 153.3, "memory_footprint_median_mb": 160.7, "memory_footprint_samples_mib": [ 153.3, 153.3, 153.3 ], "footprint_tool_crosscheck_mib": 153.0, "resident_rss_median_mib": 141.9, "ps_rss_median_mib": 141.9, "process_count": 2, "process_count_per_sample": [ 2, 2, 2, 2 ], "processes_by_kind": { "zed": 2 }, "idle_cpu_percent_of_one_core": 0.371, "wakeups_per_s": 175.7, "cpu_window_s": 60.01, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 29.46, 28.19, 22.17 ], "excluded_shell_processes": 6, "per_process": [ { "pid": 38649, "kind": "zed", "cpu_ms": 98.5, "wakeups": 649, "footprint_mib": 144.0 }, { "pid": 38653, "kind": "zed", "cpu_ms": 124.2, "wakeups": 9894, "footprint_mib": 9.0 } ], "note": "Same Zed window, second run; ready 23:43:22, this run starts ~3.5 min after ready." }, "sublime_folder": { "label": "sublime-demo-folder", "started": "2026-10-11T00:21:55", "first_sample": "2026-10-11T00:22:20", "memory_footprint_median_mib": 170.9, "memory_footprint_median_mb": 179.2, "memory_footprint_samples_mib": [ 170.9, 170.9, 170.9 ], "footprint_tool_crosscheck_mib": 170.8, "resident_rss_median_mib": 117.8, "ps_rss_median_mib": 117.8, "process_count": 4, "process_count_per_sample": [ 4, 4, 4, 4 ], "processes_by_kind": { "sublime_text": 1, "crash_handler": 1, "system-xpc:MTLCompilerService": 1, "plugin_host-3.14": 1 }, "idle_cpu_percent_of_one_core": 0.009, "wakeups_per_s": 0.4, "cpu_window_s": 60.0, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 21.21, 15.74, 11.91 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 12046, "kind": "sublime_text", "cpu_ms": 5.1, "wakeups": 22, "footprint_mib": 125.4 }, { "pid": 12085, "kind": "plugin_host-3.14", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 31.7 }, { "pid": 12076, "kind": "system-xpc:MTLCompilerService", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 11.2 }, { "pid": 12056, "kind": "crash_handler", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 2.6 } ], "note": "Sublime Text in --safe-mode (clean sandboxed data dir, default packages only, no licence), window 800x632 with the demo folder in the sidebar and an empty untitled buffer. No integrated terminal exists, so no terminal tabs: not the same scenario as the others. Ready 00:21:21." }, "sublime_folder_late": { "label": "sublime-demo-folder-late", "started": "2026-10-11T00:23:31", "first_sample": "2026-10-11T00:24:20", "memory_footprint_median_mib": 169.2, "memory_footprint_median_mb": 177.4, "memory_footprint_samples_mib": [ 169.2, 169.2, 169.2 ], "footprint_tool_crosscheck_mib": 169.1, "resident_rss_median_mib": 107.3, "ps_rss_median_mib": 107.3, "process_count": 4, "process_count_per_sample": [ 4, 4, 4, 4 ], "processes_by_kind": { "sublime_text": 1, "crash_handler": 1, "system-xpc:MTLCompilerService": 1, "plugin_host-3.14": 1 }, "idle_cpu_percent_of_one_core": 0.004, "wakeups_per_s": 0.4, "cpu_window_s": 60.01, "memory_pressure_at_samples": [ "normal", "normal", "normal" ], "load_average_1min_at_samples": [ 6.85, 6.33, 18.87 ], "excluded_shell_processes": 0, "per_process": [ { "pid": 12046, "kind": "sublime_text", "cpu_ms": 2.3, "wakeups": 22, "footprint_mib": 125.4 }, { "pid": 12085, "kind": "plugin_host-3.14", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 30.0 }, { "pid": 12076, "kind": "system-xpc:MTLCompilerService", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 11.2 }, { "pid": 12056, "kind": "crash_handler", "cpu_ms": 0.0, "wakeups": 0, "footprint_mib": 2.6 } ], "note": "Same Sublime window, second run starting 180 s after ready (00:21:21)." } }, "sizes": { "Next Term": { "bundle": "/Applications/Next Term.app", "version": "0.10.1", "build": "1035", "bundle_id": "me.mishuk.nextterm", "main_executable_archs": "x86_64 arm64", "on_disk_kib": 43372, "on_disk_mb": 44.4, "apparent_bytes": 44112113, "file_count": 135, "installed_version_download": { "file": "NextTerm-0.10.1.dmg", "bytes": 20314120, "source": "https://api.github.com/repos/MishukAdhikari/next-term/releases (asset size)", "arch": "universal (arm64 + x86_64)" } }, "Cursor": { "bundle": "/Applications/Cursor.app", "version": "3.23.23", "build": "3.23.23", "bundle_id": "com.todesktop.230313mzl4w4u92", "main_executable_archs": "x86_64 arm64", "on_disk_kib": 1415728, "on_disk_mb": 1449.7, "apparent_bytes": 1407769942, "file_count": 15303, "installed_version_download": null, "note": "The installed build's DMG (3.23.23, commit 2dac242...) is no longer served at the same path; current 3.24.12 sizes below.", "current_version": "3.24.12", "current_download": [ { "file": "Cursor-darwin-universal.dmg", "bytes": 458608803, "arch": "universal" }, { "file": "Cursor-darwin-arm64.dmg", "bytes": 295402051, "arch": "arm64" } ], "source": "https://www.cursor.com/api/download?platform=darwin-universal|darwin-arm64&releaseTrack=stable -> HEAD content-length" }, "PhpStorm": { "bundle": "/Applications/PhpStorm.app", "version": "2026.1.1", "build": "PS-261.23567.149", "bundle_id": "com.jetbrains.PhpStorm", "main_executable_archs": "arm64", "on_disk_kib": 2912756, "on_disk_mb": 2982.7, "apparent_bytes": 2977464884, "file_count": 2166, "installed_version_download": { "file": "PhpStorm-2026.1.1-aarch64.dmg", "bytes": 1001478054, "arch": "arm64", "source": "https://data.services.jetbrains.com/products/releases?code=PS (downloads.macM1.size)" }, "intel_download_bytes": 1014138030, "current_version": "2026.2.3", "current_download_arm64_bytes": 1044433429 }, "Zed": { "bundle": "/Applications/Zed.app", "version": "1.22.0", "build": "20260930.150108", "bundle_id": "dev.zed.Zed", "main_executable_archs": "arm64", "on_disk_kib": 261736, "on_disk_mb": 268.0, "apparent_bytes": 267996451, "file_count": 8, "installed_version_download": { "file": "Zed-aarch64.dmg (v1.22.0)", "bytes": 118479739, "arch": "arm64", "source": "https://api.github.com/repos/zed-industries/zed/releases/tags/v1.22.0" }, "current_version": "1.23.2", "current_download_arm64_bytes": 118562674 }, "Sublime Text": { "bundle": "/Applications/Sublime Text.app", "version": "Build 4215", "build": "4215", "bundle_id": "com.sublimetext.4", "main_executable_archs": "x86_64 arm64", "on_disk_kib": 143124, "on_disk_mb": 146.6, "apparent_bytes": 146365674, "file_count": 87, "installed_version_download": { "file": "sublime_text_build_4215_mac.zip", "bytes": 53301345, "arch": "universal", "source": "https://download.sublimetext.com/sublime_text_build_4215_mac.zip (HEAD)" } } } }