In general, when a new thread starts it gets a private copy of each existing variable (see threads::shared). In OS's that utilise copy-on-write (e.g. Linux) the effect of this may not be immediate although Perl does try to make private copies. It's good practice before starting a thread (or 35 of them) destroy all unwanted data from memory.

You mention you are using Thread::Queue. Its doc states in https://perldoc.perl.org/Thread::Queue#DESCRIPTION that

Ordinary scalars are added to queues as they are. If not already thread-shared, the other complex data types will be cloned (recursively, if needed, and including any blessings and read-only settings) into thread-shared structures before being placed onto a queue.

As I understand it, your data going into the queue must be declared :shared otherwise it will be duplicated and then :shared 35 times.

bw, bliako

In reply to Re: need help debugging perl script killed by SIGKILL by bliako
in thread need help debugging perl script killed by SIGKILL by expo1967

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