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Top Forums Shell Programming and Scripting Speeding up search and replace in a for loop Post 302657533 by hergp on Monday 18th of June 2012 02:10:21 AM
Old 06-18-2012
Wow, I did not expect ex to be so much more efficient than sed.

Do you have the total run-time in seconds for the three approaches too, pbluescript?
 

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PAPI_flips(3)							       PAPI							     PAPI_flips(3)

NAME
PAPI_flips - Simplified call to get Mflips/s (floating point instruction rate), real and processor time. SYNOPSIS
Detailed Description C Interface: #include <papi.h> int PAPI_flips( float *rtime, float *ptime, long long *flpins, float *mflips ); Parameters: *rtime total realtime since the first call *ptime total process time since the first call *flpins total floating point instructions since the first call *mflips incremental (Mega) floating point instructions per seconds since the last call Return values: PAPI_EINVAL The counters were already started by something other than PAPI_flips(). PAPI_ENOEVNT The floating point instructions event does not exist. PAPI_ENOMEM Insufficient memory to complete the operation. The first call to PAPI_flips() will initialize the PAPI High Level interface, set up the counters to monitor the PAPI_FP_INS event and start the counters. Subsequent calls will read the counters and return total real time, total process time, total floating point instructions since the start of the measurement and the Mflip/s rate since latest call to PAPI_flips(). A call to PAPI_stop_counters() will stop the counters from running and then calls such as PAPI_start_counters() or other rate calls can safely be used. PAPI_flips returns information related to floating point instructions using the PAPI_FP_INS event. This is intended to measure instruction rate through the floating point pipe with no massaging. See Also: PAPI_flops() PAPI_ipc() PAPI_epc() PAPI_stop_counters() Author Generated automatically by Doxygen for PAPI from the source code. Version 5.2.0.0 Tue Jun 17 2014 PAPI_flips(3)
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