Time Stamp Counter - Wikipedia
ウェブThe Time Stamp Counter ( TSC) is a 64-bit register present on all x86 processors since the Pentium. It counts the number of CPU cycles since its reset. The instruction RDTSC returns the TSC in EDX:EAX. In x86-64 mode, RDTSC also clears the upper 32 bits of RAX and RDX. Its opcode is 0F 31. [1]
Epoch Converter - Unix Timestamp Converter
ウェブ2001年1月1日 · The Unix epoch (or Unix time or POSIX time or Unix timestamp) is the number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap seconds (in ISO 8601: 1970-01-01T00:00:00Z). Literally speaking the epoch is Unix time 0 (midnight 1/1/1970), but 'epoch' is often used as a synonym for Unix time.
TSC(Time Stamp Counter)の取得と設定 - 備忘録 ...
ウェブ2014年1月4日 · IA32_TIME_STAMP_ COUNTER (63:0) 0, 1, 2, 3 独自 タイムスタンプ・カウンタ。15.7. 節「タイムスタンプ・カウンタ」を参照のこと。タイムスタンプ・カウント値。(R/W) 現在のタイムスタンプ・カウント値を返す。 全64ビットが読み取り可能だ
RDTSC — Read Time-Stamp Counter - felixcloutier.com
ウェブReads the current value of the processor’s time-stamp counter (a 64-bit MSR) into the EDX:EAX registers. The EDX register is loaded with the high-order 32 bits of the MSR and the EAX register is loaded with the low-order 32 bits
Using Time stamp counter to get the time stamp - Stack Overflow
ウェブTo measure real time, you use clock_gettime(CLOCK_REALTIME) or clock_gettime(CLOCK_MONOTONIC) in Linux. As Peter Cordes mentioned in a comment (Aug 2018), on most current x86-64 architectures the Time Stamp Counter (accessed by the RDTSC instruction and __rdtsc() function declared in <x86intrin.h> ) counts …
CPUクロックに基づく相対時刻の計測
ウェブ2012年9月22日 · RDTSC CPU命令を直接利用. Intel x86系のCPU（AMDのAthlon等も含む）では、CPUクロックごとに加算される64bitのタイムスタンプカウンタ（IA32_TIME_STAMP_COUNTER_MSR：通称TSC_MSR)があります。. これをRDTSC（Read Time Stamp Counter）命令を使って読み出すことで、CPU ...
Time Measurement — Handystats 1.5.0 documentation
ウェブTime Stamp Counter ¶. One of the most fast and accurate approach to measure elapsed time is by using Time Stamp Counter. The Time Stamp Counter (TSC) is a special 64-bit register which counts the number of processor’s cycles since reset. The TSC provides the highest-resolution timing information available for that processor.
Time calculation with TSC (Time Stamp Counter) - Stack Overflow
ウェブAs I have refered to http://en.wikipedia.org/wiki/Time_Stamp_Counter which says that TSC is a 64-bit register present on all x86 processors since the Pentium. So, if I have dual core processor, will this counter be present in both
Counting on the time stamp counter [LWN.net]
ウェブ2006年11月13日 · The time stamp counter (TSC) is a hardware feature found on a number of contemporary processors. The TSC is a special register which is simply incremented every clock cycle. Since the clock is the fundamental unit of time as seen by the processor, the TSC provides the highest-resolution timing information available for …
TSC - OSDev Wiki
ウェブThe Timestamp Counter is a 64-bit internal register which is present in all Intel processors after the Pentium. It stores the number of cycles executed by the CPU after the latest reset. The time-stamp counter can be read by software using the RDTSC instruction.
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