def test_stop(pyocf_ctx, mode: CacheMode, cls: CacheLineSize, with_flush: bool): """Stopping cache. Check if cache is stopped properly in different modes with or without preceding flush operation. """ cache_device = Volume(Size.from_MiB(20)) core_device = Volume(Size.from_MiB(5)) cache = Cache.start_on_device(cache_device, cache_mode=mode, cache_line_size=cls) core_exported = Core.using_device(core_device) cache.add_core(core_exported) cls_no = 10 run_io_and_cache_data_if_possible(core_exported, mode, cls, cls_no) stats = cache.get_stats() assert int(stats["conf"]["dirty"]) == (cls_no if mode.lazy_write() else 0),\ "Dirty data before MD5" md5_exported_core = core_exported.exp_obj_md5() if with_flush: cache.flush() cache.stop() if mode.lazy_write() and not with_flush: assert core_device.md5() != md5_exported_core, \ "MD5 check: core device vs exported object with dirty data" else: assert core_device.md5() == md5_exported_core, \ "MD5 check: core device vs exported object with clean data"
def test_simple_wt_write(pyocf_ctx): cache_device = Volume(S.from_MiB(30)) core_device = Volume(S.from_MiB(30)) cache = Cache.start_on_device(cache_device) core = Core.using_device(core_device) cache.add_core(core) cache_device.reset_stats() core_device.reset_stats() write_data = Data.from_string("This is test data") io = core.new_io(cache.get_default_queue(), S.from_sector(1).B, write_data.size, IoDir.WRITE, 0, 0) io.set_data(write_data) cmpl = OcfCompletion([("err", c_int)]) io.callback = cmpl.callback io.submit() cmpl.wait() assert cmpl.results["err"] == 0 assert cache_device.get_stats()[IoDir.WRITE] == 1 stats = cache.get_stats() assert stats["req"]["wr_full_misses"]["value"] == 1 assert stats["usage"]["occupancy"]["value"] == 1 assert core.exp_obj_md5() == core_device.md5() cache.stop()
def test_simple_wt_write(pyocf_ctx): cache_device = Volume(S.from_MiB(100)) core_device = Volume(S.from_MiB(200)) cache = Cache.start_on_device(cache_device) core = Core.using_device(core_device) queue = Queue(cache) cache.add_core(core) cache_device.reset_stats() core_device.reset_stats() write_data = Data.from_string("This is test data") io = core.new_io() io.set_data(write_data) io.configure(20, write_data.size, IoDir.WRITE, 0, 0) io.set_queue(queue) io.submit() assert cache_device.get_stats()[IoDir.WRITE] == 1 stats = cache.get_stats() assert stats["req"]["wr_full_misses"]["value"] == 1 assert stats["usage"]["occupancy"]["value"] == 1 assert core.exp_obj_md5() == core_device.md5()