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cachestat File system cache statistics line charts. Then, having discovered everything is C or Python, some rewrite it all in a different language. For a more recent example, I wrote cachestat(8) while on vacation in 2014 for use on the Netflix cloud, which was a mix of Linux 3.2 execsnoop New processes (via exec(2)) table.
ccache , the compiler cache, is a fantastic way to speed up build times for C and C++ code that I previously recommended. Usually when this happens with ccache, there’s something non-deterministic about the builds that prevents cache hits. Cold Cache. kB max cache size 5.0 kB max cache size 5.0
ccache, the compiler cache, is a fantastic way to speed up build times for C and C++ code that I previously recommended. Usually when this happens with ccache, there’s something non-deterministic about the builds that prevents cache hits.
100.00 ^C I'm looking at the r_await column in particular: the average wait time for reads in milliseconds. Reads usually have apps waiting on them; writes may not (write-back caching). Hit Ctrl-C to end. ^C Hit Ctrl-C to end. ^C This is a 64-Gbyte memory system, and 48 Gbytes is in the page cache (the file system cache).
For example, how many buffers must a cache have to record outstanding misses if it receives 2 memory references per cycle at 2.5 In our second blog post , we will present the M/M/1 queue that confronts us with a stark, required trade-off among (a) allowing unscheduled task arrivals, (b) minimizing latency, and (c) maximizing throughput.
The M/M/1 queue will show us a required trade-off among (a) allowing unscheduled task arrivals, (b) minimizing latency, and (c) maximizing throughput. For the previous cache miss buffer example, the 32-buffer answer is minimal for 100-ns average miss latency. While Little’s Law provides a black-box result, it does not expose tradeoffs.
cachestat File system cache statistics line charts 7. As an extreme example, I wrote cachestat(8) while on vacation in 2014 for use on the Netflix cloud, which was a mix of Linux 3.2 Then, having discovered everything is C or Python, some rewrite it all in a different language. execsnoop New processes (via exec(2)) table 2.
GA 31 March 2014 10.0.10 MyISAM is modified with segmented key caches, the default temporary table storage engine is Aria (which is a crash-safe MyISAM), the FederatedX engine is a modified FEDERATED engine, and there are more: CONNECT, Mroonga, OQGRAPH, Sequence, SphinxSE, SPIDER, TokuDB and of course MyRocks. GA 28 April 2011 5.5.11-20.2
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