Software utilizado nos testes
Os testes foram feitos em Linux, até porque parte das ferramentas existem apenas em sistemas * nix.
Resumindo, o sistema é um Debian testing, com o kernel 2.6.39.1 Liquorix, que inclui vários patches, como por exemplo o BFS scheduler.
Todas as ferramentas utilizadas são as que estão disponíveis no Debian testing.
Fica aqui ao pormenor em relação ao sistema operativo:
nemesis11@debian1:~/$ uname -a Linux debian1 2.6.39-1.dmz.2-liquorix-amd64 #1 ZEN SMP PREEMPT Fri Jun 10 01:11:24 CDT 2011 x86_64 GNU/Linux
nemesis11@debian1:/$ cat /etc/mtab /dev/sda4 / ext4 rw,noatime,errors=remount-ro,user_xattr,commit=0 0 0
nemesis11@debian1:/$ sysctl -a kernel.panic = 0 kernel.core_uses_pid = 0 kernel.core_pattern = core kernel.core_pipe_limit = 0 kernel.tainted = 2048 kernel.real-root-dev = 0 kernel.print-fatal-signals = 0 kernel.ctrl-alt-del = 0 kernel.ftrace_dump_on_oops = 0 kernel.modprobe = /sbin/modprobe kernel.modules_disabled = 0 kernel.hotplug = kernel.sysrq = 1 error: permission denied on key 'kernel.cad_pid' kernel.threads-max = 61682 kernel.random.poolsize = 4096 kernel.random.entropy_avail = 1078 kernel.random.read_wakeup_threshold = 64 kernel.random.write_wakeup_threshold = 128 kernel.random.boot_id = f3de3fc7-5a8d-4bc4-adbd-993fe97136ce kernel.random.uuid = 77d7d9dd-16b8-44a9-ba81-803c5cc487b2 kernel.overflowuid = 65534 kernel.overflowgid = 65534 kernel.pid_max = 32768 kernel.panic_on_oops = 0 kernel.printk = 4 4 1 7 kernel.printk_ratelimit = 5 kernel.printk_ratelimit_burst = 10 kernel.printk_delay = 0 kernel.dmesg_restrict = 0 kernel.kptr_restrict = 0 kernel.ngroups_max = 65536 kernel.unknown_nmi_panic = 0 kernel.panic_on_unrecovered_nmi = 0 kernel.panic_on_io_nmi = 0 kernel.bootloader_type = 114 kernel.bootloader_version = 2 kernel.kstack_depth_to_print = 12 kernel.io_delay_type = 3 kernel.randomize_va_space = 2 kernel.rr_interval = 3 kernel.iso_cpu = 50 kernel.acpi_video_flags = 0 kernel.compat-log = 1 kernel.max_lock_depth = 1024 kernel.poweroff_cmd = /sbin/poweroff kernel.keys.maxkeys = 200 kernel.keys.maxbytes = 20000 kernel.keys.root_maxkeys = 200 kernel.keys.root_maxbytes = 20000 kernel.keys.gc_delay = 300 kernel.perf_event_paranoid = 1 kernel.perf_event_mlock_kb = 516 kernel.perf_event_max_sample_rate = 100000 kernel.blk_iopoll = 1 kernel.vsyscall64 = 1 kernel.ostype = Linux kernel.osrelease = 2.6.39-1.dmz.2-liquorix-amd64 kernel.version = #1 ZEN SMP PREEMPT Fri Jun 10 01:11:24 CDT 2011 kernel.hostname = debian1 kernel.domainname = (none) kernel.shmmax = 33554432 kernel.shmall = 2097152 kernel.shmmni = 4096 kernel.msgmax = 8192 kernel.msgmni = 7735 kernel.msgmnb = 16384 kernel.sem = 250 32000 32 128 kernel.auto_msgmni = 1 kernel.pty.max = 4096 kernel.pty.nr = 286 kernel.sched_domain.cpu0.domain0.min_interval = 1 kernel.sched_domain.cpu0.domain0.max_interval = 4 kernel.sched_domain.cpu0.domain0.busy_idx = 2 kernel.sched_domain.cpu0.domain0.idle_idx = 0 kernel.sched_domain.cpu0.domain0.newidle_idx = 0 kernel.sched_domain.cpu0.domain0.wake_idx = 0 kernel.sched_domain.cpu0.domain0.forkexec_idx = 0 kernel.sched_domain.cpu0.domain0.busy_factor = 64 kernel.sched_domain.cpu0.domain0.imbalance_pct = 125 kernel.sched_domain.cpu0.domain0.cache_nice_tries = 1 kernel.sched_domain.cpu0.domain0.flags = 4655 kernel.sched_domain.cpu0.domain0.name = MC kernel.sched_domain.cpu1.domain0.min_interval = 1 kernel.sched_domain.cpu1.domain0.max_interval = 4 kernel.sched_domain.cpu1.domain0.busy_idx = 2 kernel.sched_domain.cpu1.domain0.idle_idx = 0 kernel.sched_domain.cpu1.domain0.newidle_idx = 0 kernel.sched_domain.cpu1.domain0.wake_idx = 0 kernel.sched_domain.cpu1.domain0.forkexec_idx = 0 kernel.sched_domain.cpu1.domain0.busy_factor = 64 kernel.sched_domain.cpu1.domain0.imbalance_pct = 125 kernel.sched_domain.cpu1.domain0.cache_nice_tries = 1 kernel.sched_domain.cpu1.domain0.flags = 4655 kernel.sched_domain.cpu1.domain0.name = MC vm.overcommit_memory = 0 vm.panic_on_oom = 0 vm.oom_kill_allocating_task = 0 vm.oom_dump_tasks = 1 vm.overcommit_ratio = 50 vm.page-cluster = 3 vm.dirty_background_ratio = 5 vm.dirty_background_bytes = 0 vm.dirty_ratio = 10 vm.dirty_bytes = 0 vm.dirty_writeback_centisecs = 500 vm.dirty_expire_centisecs = 3000 vm.nr_pdflush_threads = 0 vm.swappiness = 0 vm.nr_hugepages = 0 vm.nr_hugepages_mempolicy = 0 vm.hugetlb_shm_group = 0 vm.hugepages_treat_as_movable = 0 vm.nr_overcommit_hugepages = 0 vm.lowmem_reserve_ratio = 256 256 32 vm.drop_caches = 0 error: permission denied on key 'vm.compact_memory' vm.extfrag_threshold = 500 vm.min_free_kbytes = 67584 vm.percpu_pagelist_fraction = 0 vm.max_map_count = 65530 vm.laptop_mode = 0 vm.block_dump = 0 vm.vfs_cache_pressure = 100 vm.legacy_va_layout = 0 vm.zone_reclaim_mode = 0 vm.min_unmapped_ratio = 1 vm.min_slab_ratio = 5 vm.stat_interval = 1 vm.mmap_min_addr = 4096 vm.numa_zonelist_order = default vm.scan_unevictable_pages = 0 vm.memory_failure_early_kill = 0 vm.memory_failure_recovery = 1 fs.inode-nr = 704379 56909 fs.inode-state = 704379 56909 0 0 0 0 0 fs.file-nr = 8256 0 394736 fs.file-max = 394736 fs.nr_open = 1048576 fs.dentry-state = 693112 684629 45 0 0 0 fs.overflowuid = 65534 fs.overflowgid = 65534 fs.leases-enable = 1 fs.dir-notify-enable = 1 fs.lease-break-time = 45 fs.aio-nr = 0 fs.aio-max-nr = 65536 fs.inotify.max_user_instances = 128 fs.inotify.max_user_watches = 8192 fs.inotify.max_queued_events = 16384 fs.epoll.max_user_watches = 808488 fs.suid_dumpable = 0 fs.pipe-max-size = 1048576 fs.quota.lookups = 0 fs.quota.drops = 0 fs.quota.reads = 0 fs.quota.writes = 0 fs.quota.cache_hits = 0 fs.quota.allocated_dquots = 0 fs.quota.free_dquots = 0 fs.quota.syncs = 36 fs.mqueue.queues_max = 256 fs.mqueue.msg_max = 10 fs.mqueue.msgsize_max = 8192
