Hi, We run a small public cloud in Canada and were testing out a VDI-per-LUN type of storage where each virtual disk is mapped to a LUN on the storage array. We have been seeing delays when an iscsi login is made. We use open-iscsi 2.0-873 in our production. I compiled that with profiling support to figure out where the delay is. I would love if someone could help me figure out the performance bottlenecks.
I currently have the following sessions: [root@ucs-xen1 ~]# iscsiadm -m session | wc -l 798 [root@ucs-xen1 ~]# If I attach a new LUN the time taken is about 9.3 seconds [root@ucs-xen1 ~]# time ./iscsiadm -m node -p 172.31.255.160 -T iqn.2010-01.com.solidfire:giwd.sr-198.3588 -l Logging in to [iface: default, target: iqn.2010-01.com.solidfire:giwd.sr- 198.3588, portal: 172.31.255.160,3260] (multiple) Login to [iface: default, target: iqn.2010-01.com.solidfire:giwd.sr-198.3588 , portal: 172.31.255.160,3260] successful. Number of recs found 1 real 0m9.312s user 0m0.088s sys 0m0.120s [root@ucs-xen1 ~]# I am attaching the gmon output here -Syed -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.
gmon_txt
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