{
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  "sdk": "37",
  "installed_release": true,
  "apk_sha256": "c9a096039f0ba81933153e839da60a6dedf229a4aebcc9e66e0cbca6cc7e3dac",
  "entry_scope": "Installed Release APK runtime, Release instance and UID; rooted ADB entry, not Activity launch; warm cache; no CPU affinity or frequency lock; no GUI/GPU ranking.",
  "source_url": "https://www.python.org/ftp/python/3.13.13/Python-3.13.13.tar.xz",
  "source_sha256": "2ab91ff401783ccca64f75d10c882e957bdfd60e2bf5a72f8421793729b78a71",
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  "helper_sha256": "49f6ae2da57acc8d0bcb85466398f7213748976a271c48536bef4039a0aa9c7e",
  "toolchain_hashes": {
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    "make": "442d0d9908e6e1968a2e1f9a82aad5231ff6b02deb3071ce38750e2e2f7a2a45"
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  "samples": {
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        "jobs": 4,
        "configure_args": [
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        "CFLAGS": "-O2",
        "gcc": "gcc (Debian 14.2.0-19) 14.2.0",
        "make": "GNU Make 4.4.1",
        "feature_cache": {
          "ac_cv_posix_semaphores_enabled": "no",
          "ac_cv_broken_sem_getvalue": "yes"
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        "configure_seconds": 55.98316945799888,
        "pyconfig_sha256": "0519b1d36f0c01b7ad162731c39bb8fd9bdece3ea3107a5b2f10f1a313aa2b42",
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        "build_seconds": 44.611953420000646,
        "module_summary": "Checked 112 modules (33 built-in, 74 shared, 1 n/a on linux-aarch64, 0 disabled, 4 missing, 0 failed on import)",
        "verify": "3.13.13 (main, Oct 10 2026, 07:00:48) [GCC 14.2.0]\nmodules-ok\n",
        "total_seconds": 100.59512287799953
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      {
        "uid": 10305,
        "source_sha256": "2ab91ff401783ccca64f75d10c882e957bdfd60e2bf5a72f8421793729b78a71",
        "jobs": 4,
        "configure_args": [
          "/arlinux-performance/Python-3.13.13/configure",
          "--prefix=/arlinux-performance/install"
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        "CFLAGS": "-O2",
        "gcc": "gcc (Debian 14.2.0-19) 14.2.0",
        "make": "GNU Make 4.4.1",
        "feature_cache": {
          "ac_cv_posix_semaphores_enabled": "no",
          "ac_cv_broken_sem_getvalue": "yes"
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        "configure_seconds": 55.81640253000296,
        "pyconfig_sha256": "0519b1d36f0c01b7ad162731c39bb8fd9bdece3ea3107a5b2f10f1a313aa2b42",
        "stdlib_setup_sha256": "4a9443f03cb9f007b932bd148cbce2c96f3a8d46ba3922aebd0ff005c12b2b29",
        "build_seconds": 45.471669358001236,
        "module_summary": "Checked 112 modules (33 built-in, 74 shared, 1 n/a on linux-aarch64, 0 disabled, 4 missing, 0 failed on import)",
        "verify": "3.13.13 (main, Oct 10 2026, 07:16:25) [GCC 14.2.0]\nmodules-ok\n",
        "total_seconds": 101.2880718880042
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      {
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        "jobs": 4,
        "configure_args": [
          "/arlinux-performance/Python-3.13.13/configure",
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        "CFLAGS": "-O2",
        "gcc": "gcc (Debian 14.2.0-19) 14.2.0",
        "make": "GNU Make 4.4.1",
        "feature_cache": {
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          "ac_cv_broken_sem_getvalue": "yes"
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        "configure_seconds": 55.83139753100113,
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        "stdlib_setup_sha256": "4a9443f03cb9f007b932bd148cbce2c96f3a8d46ba3922aebd0ff005c12b2b29",
        "build_seconds": 45.86581341999772,
        "module_summary": "Checked 112 modules (33 built-in, 74 shared, 1 n/a on linux-aarch64, 0 disabled, 4 missing, 0 failed on import)",
        "verify": "3.13.13 (main, Oct 10 2026, 07:21:31) [GCC 14.2.0]\nmodules-ok\n",
        "total_seconds": 101.69721095099885
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    "proot": [
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        "jobs": 4,
        "configure_args": [
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        "CFLAGS": "-O2",
        "gcc": "gcc (Debian 14.2.0-19) 14.2.0",
        "make": "GNU Make 4.4.1",
        "feature_cache": {
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          "ac_cv_broken_sem_getvalue": "yes"
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        "configure_seconds": 113.87777297700086,
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        "build_seconds": 68.89837257799809,
        "module_summary": "Checked 112 modules (33 built-in, 74 shared, 1 n/a on linux-aarch64, 0 disabled, 4 missing, 0 failed on import)",
        "verify": "3.13.13 (main, Oct 10 2026, 07:04:50) [GCC 14.2.0]\nmodules-ok\n",
        "total_seconds": 182.77614555499895
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        "configure_args": [
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        "gcc": "gcc (Debian 14.2.0-19) 14.2.0",
        "make": "GNU Make 4.4.1",
        "feature_cache": {
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          "ac_cv_broken_sem_getvalue": "yes"
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        "configure_seconds": 115.0358203729993,
        "pyconfig_sha256": "0519b1d36f0c01b7ad162731c39bb8fd9bdece3ea3107a5b2f10f1a313aa2b42",
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        "build_seconds": 69.34804533800343,
        "module_summary": "Checked 112 modules (33 built-in, 74 shared, 1 n/a on linux-aarch64, 0 disabled, 4 missing, 0 failed on import)",
        "verify": "3.13.13 (main, Oct 10 2026, 07:11:18) [GCC 14.2.0]\nmodules-ok\n",
        "total_seconds": 184.38386571100273
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        "configure_args": [
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          "--prefix=/arlinux-performance/install"
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        "CFLAGS": "-O2",
        "gcc": "gcc (Debian 14.2.0-19) 14.2.0",
        "make": "GNU Make 4.4.1",
        "feature_cache": {
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          "ac_cv_broken_sem_getvalue": "yes"
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        "configure_seconds": 115.63167339400025,
        "pyconfig_sha256": "0519b1d36f0c01b7ad162731c39bb8fd9bdece3ea3107a5b2f10f1a313aa2b42",
        "stdlib_setup_sha256": "4a9443f03cb9f007b932bd148cbce2c96f3a8d46ba3922aebd0ff005c12b2b29",
        "build_seconds": 69.43069372299942,
        "module_summary": "Checked 112 modules (33 built-in, 74 shared, 1 n/a on linux-aarch64, 0 disabled, 4 missing, 0 failed on import)",
        "verify": "3.13.13 (main, Oct 10 2026, 07:25:35) [GCC 14.2.0]\nmodules-ok\n",
        "total_seconds": 185.06236711699967
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    "chroot": [
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        "jobs": 4,
        "configure_args": [
          "/arlinux-performance/Python-3.13.13/configure",
          "--prefix=/arlinux-performance/install"
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        "CFLAGS": "-O2",
        "gcc": "gcc (Debian 14.2.0-19) 14.2.0",
        "make": "GNU Make 4.4.1",
        "feature_cache": {
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          "ac_cv_broken_sem_getvalue": "yes"
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        "build_seconds": 42.31541201499931,
        "module_summary": "Checked 112 modules (33 built-in, 74 shared, 1 n/a on linux-aarch64, 0 disabled, 4 missing, 0 failed on import)",
        "verify": "3.13.13 (main, Oct 10 2026, 07:07:15) [GCC 14.2.0]\nmodules-ok\n",
        "total_seconds": 81.87451569800032
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        "configure_args": [
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          "--prefix=/arlinux-performance/install"
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        "CFLAGS": "-O2",
        "gcc": "gcc (Debian 14.2.0-19) 14.2.0",
        "make": "GNU Make 4.4.1",
        "feature_cache": {
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          "ac_cv_broken_sem_getvalue": "yes"
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        "build_seconds": 42.75600128500082,
        "module_summary": "Checked 112 modules (33 built-in, 74 shared, 1 n/a on linux-aarch64, 0 disabled, 4 missing, 0 failed on import)",
        "verify": "3.13.13 (main, Oct 10 2026, 07:13:43) [GCC 14.2.0]\nmodules-ok\n",
        "total_seconds": 82.41575804099921
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      {
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        "jobs": 4,
        "configure_args": [
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          "--prefix=/arlinux-performance/install"
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        "CFLAGS": "-O2",
        "gcc": "gcc (Debian 14.2.0-19) 14.2.0",
        "make": "GNU Make 4.4.1",
        "feature_cache": {
          "ac_cv_posix_semaphores_enabled": "no",
          "ac_cv_broken_sem_getvalue": "yes"
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        "configure_seconds": 40.3774462859983,
        "pyconfig_sha256": "0519b1d36f0c01b7ad162731c39bb8fd9bdece3ea3107a5b2f10f1a313aa2b42",
        "stdlib_setup_sha256": "4a9443f03cb9f007b932bd148cbce2c96f3a8d46ba3922aebd0ff005c12b2b29",
        "build_seconds": 43.12414826500026,
        "module_summary": "Checked 112 modules (33 built-in, 74 shared, 1 n/a on linux-aarch64, 0 disabled, 4 missing, 0 failed on import)",
        "verify": "3.13.13 (main, Oct 10 2026, 07:18:49) [GCC 14.2.0]\nmodules-ok\n",
        "total_seconds": 83.50159455099856
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  "scope": "Same phone, same physical rootfs/source/toolchain; native arm64 full out-of-tree builds. CFLAGS=-O2; make -j4 all; no PGO/LTO/ccache. Identical conservative POSIX semaphore configure-cache inputs on ALL backends; feature headers and module sets verified identical. Three rotating-order rounds with untimed 60-second cooling gaps. Downloads/extraction excluded. Configure and build timed inside guest. Chroot top-level mount view differs; frequencies/thermal state not locked. Not interpreter speed, bytecode compilation or full Termux environment.",
  "results": {
    "configure_seconds": {
      "arlinux": 55.83139753100113,
      "proot": 115.0358203729993,
      "chroot": 39.65975675599839,
      "AR_over_chroot": 1.4077594543631902,
      "PRoot_over_AR": 2.060414488265749
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    "build_seconds": {
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      "chroot": 42.75600128500082,
      "AR_over_chroot": 1.0635154830054956,
      "PRoot_over_AR": 1.5250824594105403
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    "total_seconds": {
      "arlinux": 101.2880718880042,
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      "chroot": 82.41575804099921,
      "AR_over_chroot": 1.2289891435278264,
      "PRoot_over_AR": 1.8203907160448156
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}