cat /proc/nnnn/status (여기서 nnnn은 pid)
Name gk
State S (sleeping)
Pid 5407
PPid 5299
TracerPid 0
Uid 502 502 502 502
Gid 503 503 503 503
FDSize 1024
Groups 503
VmSize 25316 kB
VmLck 0 kB
VmRSS 2492 kB
VmData 12020 kB
VmStk 16 kB
VmExe 308 kB
VmLib 11512 kB
SigPnd 0000000000000000
SigBlk 0000000080000000
SigIgn 0000000000000000
SigCgt 000000038c005a07
CapInh 0000000000000000
CapPrm 0000000000000000
CapEff 0000000000000000
라고 나오는데여.. 저기 FDSize 가 1024 라네요..