Rtc0 high interrupt rate

Lately, I've been experiencing increased power usage on my laptop. I tried launching powertop and this is what I saw:
Wakeups-from-idle per second : 471.1 interval: 5.0s
no ACPI power usage estimate available
Top causes for wakeups:
76.1% (1025.4) [rtc0] <interrupt>
8.2% (111.2) chromium
4.5% ( 60.0) [radeon] <interrupt>
3.8% ( 51.2) [kernel scheduler] Load balancing tick
2.3% ( 30.6) [ath9k, snd_hda_intel] <interrupt>
Why rtc0 has so many interrupts and any idea how to fix this?

NOW the concurrent session users is 1350.
The total cuonsumed traffic in the interface of gig 0/1 is 500 Mbps
and for interface gig 0/2 is 520 Mbps
in my show arp, it just appear the devices directly connected to my LNS is contains 14 address
show log result
Jan 22 10:33:13.729: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Virtual-Access808: the fragment table has reached its maximum threshold 16
Jan 22 10:35:22.401: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Virtual-Access808: the fragment table has reached its maximum threshold 16
Jan 22 10:37:38.401: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Virtual-Access808: the fragment table has reached its maximum threshold 16
Jan 22 10:41:00.937: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Virtual-Access808: the fragment table has reached its maximum threshold 16
Jan 22 10:47:48.289: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Virtual-Access808: the fragment table has reached its maximum threshold 16
Jan 22 10:53:34.321: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Virtual-Access808: the fragment table has reached its maximum threshold 16
Jan 22 12:05:39.841: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Virtual-Access70: the fragment table has reached its maximum threshold 16
Jan 22 12:44:52.537: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Virtual-Access950: the fragment table has reached its maximum threshold 16
Jan 22 16:07:35.016: %IP_VFR-3-OVERLAP_FRAGMENTS: Virtual-Access1429: from the host xxxxxxxx destined to 168.83.77.205
Jan 22 16:31:08.592: %IP_VFR-3-OVERLAP_FRAGMENTS: Virtual-Access713: from the host yyyyyyyyyyy destined to 2.89.62.26
Jan 22 17:06:47.504: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Virtual-Access1350: the fragment table has reached its maximum threshold 1
LNS#show run | i route
no ip source-route
router ospf 1
router-id 127.1.1.1
ip route 0.0.0.0 0.0.0.0 10.20.10.1
ip route 2222222222222.0 255.255.255.0 next hop of giga0/1 interface
ip route 3333333333333.0 255.255.255.0 next hop of giga0/1 interface

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Quote from: Henry on 03-February-11, 19:15:00
Read this: http://www.ehow.com/about_5067955_refresh-rate-computer.html
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ed2345 wrote:
malus_domestica wrote:
Thanks for the response.
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Message was edited by: Chip_Nashville

Rtc0 high interrupt rate

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