m{ms\s+\K(\S+)\s*$} matches:

 12     *      533 ms   288 ms  83.167.56.177 
 12     *      222 ms   198 ms  4.69.166.157
 16   343 ms     *      352 ms  4.69.148.45
 18     *      342 ms   349 ms  4.69.153.14

[download]

Whereas the OP's /(?: \d+ [ ] ms \s+ ){3} ($RE{net}{IPv4})/msx does not. Am not sure, however, whether that was the OP's intent.

In reply to Re: Out of Memory in Perl by Kenosis
in thread Out of Memory in Perl by maheshkumar

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