System Performance Tuning2002
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MAC (media access control) MAC address major page faults majority consensus algorithm (Solstice DiskSuite) Manchester encoding mapping caches MAR (memory address register) master ports MAU (medium attachment unit) maxcontig filesystem parameter maximum segment size (MSS), TCP packets maximum transmission unit (MTU) maxpgio, kernel variable tuning maxusers parameter kernel tables MB (megabyte) MBus architecture md package (Linux RAID array management) MDR (memory data register) Mean Time Between Failure (MTBF) Mean Time To Data Inaccessibility (MTTDI) Mean Time To Data Loss (MTTDL) Mean Time To Repair (MTTR) measurements, rationale for media access control (MAC) medium attachment unit (MAU) megabyte (MB) megaflops (MFLOPS) megahertz (MHz) memory [See also virtual memory] access time address space layout addressing limitations associative mapping benchmarking Linpack benchmark tools cache access times cache lines caches and hierarchy characteristics consumption considerations 2nd cycle time data path bits data transfer measurement methods demand paging direct cache mapping filesystem caching bdflush command cyclic caching disk interaction constraints fsflush command priority paging free list hardware-based RAID array management interleaving intimately shared memory kernel memory allocation errors lm benchmark management, Linux modules, types of monitoring memstat command sar command vmstat command NFS requirements NVRAM, NFS and page coloring page scanner paging paging compared to swapping performance metrics physical implementation process accounting process utilization, displaying processes monitoring consumption ps command uax command processor caches requirements determining estimating speed compared to processor speed STREAM benchmark swap space anonymous memory monitoring optimizing sizing swapping effect on interactive performance system performance, effect on TLB (transaction lookaside buffer) uncacheable areas virtual address spaces web servers workgroup servers and memory address register (MAR) memory data register (MDR) memory management unit (MMU) memory system (von Neumann model) memstat command, memory monitoring Message fragmentation needed (ICMP error) message passing patterns (networks) metadata logging (filesystems) metadb command, Solstice DiskSuite state databases metadevices metainformation database (Solstice DiskSuite) metamirrors (Solaris DiskSuite) metattach command, Solaris DiskSuite metrics, memory performance MFLOPS (megaflops) MHz (megahertz) microprocessors [See processors] microSPARC processors, memory page size microstate accounting enabling migrating ext2fs to ext3fs minfree filesystem parameter minor page faults MIPS (millions of instructions per second) MIPS processors, memory page size mirrored striping mirroring disks disk replacement Linux md package Solaris DiskSuite miss cost (memory cache) mkinitrd command, RAID arrays, booting mkraid device command, Linux md package MMU (memory management unit) MMX extensions (Intel) monacct command, process accounting Motorola PowerPC processors, memory page size mount command journaling mode, setting logging option options to CacheFS mounting network filesystems mounts, NFS (Network File System), nesting mpstat command mutex information processor statistics MSS (maximum segment size), TCP packets MTBF (Mean Time Between Failure) MTTDI (Mean Time To Data Inaccessibility) MTTDL (Mean Time To Data Loss) MTTR (Mean Time To Repair) MTU (maximum transmission unit) MTU (message transfer unit), TCP packets and multi-initiator SCSI multi-word DMA multimode fiber multiporting multiprocessor systems [See also processors; SMP]2nd application behavior busses caches communication basics 2nd crossbars Fireplane (Sun) interconnectionless architectures load average statistic optimum processor load considerations process queues processor statistics mpstat command thread synchronization threads multitasking mutexes lockstat command mpstat command processor load and mutual exclusion locks (mutexes)
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