Bukkit

http://pastebin.com/qVza04NM

DynamicShop v1.45
    PLAYER_JOIN 15516484
    PLAYER_INTERACT 263855277959
    SIGN_CHANGE 203960
    BLOCK_BREAK 12525038
    Total time 263883523441 (263s)

This plugin when installed along side: Essentials, Residences, Multiverse, Logblock, Dynmap produced more blocking lag than these combined.

We have the same problems on our server.

Plugins:

• MultiInv 3.0.0
• WorldEdit 5.0
• NightQuery 1.6NC
• Vault 1.2.6-b70
• PermissionsEx 1.17
• WorldGuard 5.4
• iConomy 6.0.8b
• Permissions 2.7.7
• HawkEye 1.0.5b
• CFBanner 1.9.3
• My Worlds 1.32
• DynamicShop 1.45
• Modifyworld 1.16
• MinecartManiaCore 1.2.8
• NoCheat 2.25
• Essentials 2.7.2
• ShowCaseStandalone 0.57a
• MinecartManiaAdminControls 1.2.7
• ChatManager 1.15
• EssentialsGeoIP 2.7.2
• MinecartManiaChestControl 1.2.5
• MinecartManiaStation 1.2.5
• LWC 4.0.7 (b613-git-754ca078)
• dynmap 0.29.2-719
• Dynmap-WorldGuard 0.13
• MinecartManiaAutomations 1.2.2
• MinecartManiaSignCommands 1.2.8
• dynmap-mobs 0.12

Already working on a fix...