[gzip] appears in process table after gzip command completes
I'm on Sles9sp3 2.6.5-7.244-smp x86_64.
I have a ksh script which submits a number of gzip commands using & to submit to the background, and then the script monitors the processes for completion.
I have noted that once the gzip command has finished, a related process hangs about for a few minutes. The file timestamp is then set to 3-5 minutes after the gzip actually completed.
This process runs and completes:
oracle 15544 1 95 02:40 ? 00:01:35 gzip -c /oracle/live/oradata/app11i/SYSTEM07_app11i.dbf
But this entry in the process table hangs about:
oracle 15544 1 95 02:40 ? 00:01:36 [gzip]
I'm interested to understand what is causing this delay. I would like the files timestamp to match when the gzip finished.
Please let me have your ideas.