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Simulasi Mutual Exclusion dengan Variabel Lock Tugas Sistem Operasi Dosen : Jajang Kusnendar, M.T

Simulasi Mutual Exclusion dengan Variabel Lock Tugas Sistem Operasi Dosen : Jajang Kusnendar, M.T. Kiki Husni Kamil (0905789) Fera Rika Rahmatika (1003087) Ari Hartiningsih (1006337) Rubi Cahya Ramadhan (1002305) Ichsan Ramadhan Triesaputra (1002541). A. critical section. s tatus lock = 0.

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Simulasi Mutual Exclusion dengan Variabel Lock Tugas Sistem Operasi Dosen : Jajang Kusnendar, M.T

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  1. Simulasi Mutual Exclusiondengan Variabel LockTugas Sistem OperasiDosen :Jajang Kusnendar, M.T Kiki Husni Kamil (0905789) Fera Rika Rahmatika (1003087) Ari Hartiningsih (1006337) Rubi Cahya Ramadhan (1002305) Ichsan Ramadhan Triesaputra (1002541)

  2. A critical section status lock = 0 Proses A dalam keadaan ready, dan melihat status lock = 0.

  3. A critical section status lock = 1 Proses A langsung masuk atau diproses di critical section, sehingga status lock yang tadinya 0 berubah menjadi 1.

  4. B critical section status lock = 1 A Proses A masih diproses (running), proses B dalam keadaan ready, dan melihat status lock = 1, maka proses B menunggu (waiting) masuk critical section.

  5. B critical section status lock = 0 A Proses A selesai diproses, maka status lock = 0.

  6. B critical section status lock = 1 A Proses B masuk critical section , makastatus lock berubah yang tadinya 0 menjadi 1.

  7. C critical section status lock = 1 B A Proses B masih diproses (running), maka status lock = 1, kemudian proses C masuk dalam keadaan ready, karena melihat status lock = 1, maka proses C menunggu (waiting).

  8. D C critical section status lock = 1 B A Proses B masihdiproses, danprosesC masihmenunggu (waiting). Masuk lagi proses D, karena melihat proses C mengantri, maka proses D mengantri di belakang proses C.

  9. D C critical section status lock = 0 B A Proses B selesai diproses, maka status lock berubah dari 1 menjadi 0.

  10. D C critical section status lock = 1 B A Proses C masuk dalam critical section, dan status lock berubahmenjadi 1. Proses D tetap menunggu (waiting)sampaiproses C selesai.

  11. E D critical section status lock = 0 C B A Proses C selesai diproses, maka status lock = 0.

  12. E D critical section status lock = 1 C B A Proses C selesai diprosesdan status lock = 0, kemudian proses E masukdan proses D masuk ke dalamcritical section (karenadatang terlebih dahuludaripadaproses E) sehingga status lock berubahdari 0 menjadi 1.

  13. E critical section status lock = 0 D C B A Proses D selesaidiproses, maka status lock = 0.

  14. E critical section status lock = 1 D C B A Proses E masuk ke critical section, maka status lock = 1.

  15. critical section status lock = 0 E D C B A Proses E selesai diproses, maka status lock = 0.

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