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Compressão: Lrzip

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:

[email protected]:~/$ 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
[email protected]:/$ cat /etc/mtab
/dev/sda4 / ext4 rw,noatime,errors=remount-ro,user_xattr,commit=0 0 0
[email protected]:/$ 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
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