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Many commercial microprocessor architectures have added <italic>translation lookaside buffer</italic> (TLB) support for <italic>superpages</italic>. Superpages differ from segments because their size must be a power of two multiple of the base page size and they must be aligned in both virtual and physical address spaces. Very large superpages (e.g., 1MB)(More)
Wisconsin Architectural Research Tool Set (WARTS) is a collection of tools for profiling and tracing programs and analyzing program traces. WARTS currently contains: • QPT, a program profiler and tracing system. ° CPROF, a cache performance profiler. • Tycho and dineroIII, cache simulators. WARTS is distributed with the full source and a small amount of(More)
As computer system main memories get larger and processor cycles-per-instruction (CPIs) get smaller, the time spent in handling translation lookaside buffer (TLB) misses could become a performance bottleneck. We explore relieving this bottleneck by (a) increasing the page size and (b) supporting two page sizes. We discuss how to build a TLB to support two(More)
Most computer architectures are moving to 64-bit virtual address spaces. We first discuss how this change impacts conventional linear, forward-mapped, and hashed page tables. We then introduce a new page table data structure—clustered page fa-ble—that can be viewed as a hashed page table augmented with subblocking. Specifically, it associates mapping(More)
Operating systems allow multiple processes to share physical objects, e.g., shared libraries, System V shared memory. Many UNIX ® implementations allow processes to use different virtual addresses known as aliases to map a shared physical page. Each alias traditionally requires separate page table and translation lookaside buffer (TLB) entries that contain(More)
Wisconsin Architectural Research Tool Set (WARTS) is a collection of tools for profiling and tracing programs and analyzing program traces. WARTS currently contains: • QPT, a program profiler and tracing system. • CPROF, a cache performance profiler. • Tycho and dineroIII, cache simulators. WARTS is distributed with the full source and a small amount of(More)
BACKGROUND Lung cancer is an important cause of cancer related deaths worldwide. There are few publications from India on treatment outcomes for non-small cell lung cancer (NSCLC). This study was done to analyze the response rates (RR), progression free survival (PFS), overall survival (OS), one and two-year survival of patients with advanced NSCLC treated(More)
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