Reputation
23,091
Next tag badge:
95/100 score
38/20 answers
Badges
1 26 54
Newest
 Nice Answer
Impact
~825k people reached

Jul
24
comment understanding web server memory usage
@user3413046 That's not a simple question. Paging is one way to tell. Poor performance is another. Experience with similar systems and understanding their behavior is another way. It takes years of experience to understand how to make those kinds of judgments. Do not believe anyone who tells you there are shortcuts or simple rules of thumb that always work.
Jul
24
comment understanding web server memory usage
@user3413046 Don't do this. Understand how memory actually works and understand your system in terms of what it's really doing rather than making up unreal terms to force an unrealistic mental model that doesn't apply. The real usage is, and should be, as much as possible. Almost all RAM usage is effectively as a cache.
Jul
24
answered understanding web server memory usage
Jul
23
awarded  Nice Answer
Jul
20
answered What does a switch do with invalid VLAN tagged traffic?
Jul
15
comment 1 error when downloading file over ssl in internet explorer
Then I'd suggest capturing the traffic of the failed connection attempt and analyzing it.
Jul
15
answered 1 error when downloading file over ssl in internet explorer
Jul
15
comment 1 error when downloading file over ssl in internet explorer
You may be wrong that it's the client's fault. The client may be (quite rightly) rejecting an ephemeral DH key that is export grade used with a symmetric cipher that is stronger. It is probably either IE's fix for logjam or OpenSSL's fix for logjam. Does your application use OpenSSL? If so, what OpenSSL version are you using? Does your application customize the generation of ephemeral DH keys (by calling SSL_CTX_set_tmp_dh_callback)?
Jul
13
comment Minimum requirements seem to much for a 32 bit application
There is no physical memory limit for 32-bit processes (see my answer). There is only one memory limit on 32-bit processes, and it's a virtual limit. On Windows, it's either 2GB or 4GB depending on whether the application is LAA.
Jul
13
comment Minimum requirements seem to much for a 32 bit application
@w0051977 No, not at all. It's not even remotely like that. The decision to use RAM or the pagefile is totally up to the OS which isn't subject to any 4GB limitation.
Jul
13
comment Minimum requirements seem to much for a 32 bit application
Just little things like the phrase "in a few hours".
Jul
12
comment Minimum requirements seem to much for a 32 bit application
By the way, these "requirements" seem very suspicious. It is very unusual, for example, to require a specific number of cores. And the wording seems awfully haphazard. I would doubt that these "requirements" are reliable indications of what the application requires.
Jul
12
answered Minimum requirements seem to much for a 32 bit application
Jul
11
awarded  tcp
Jun
24
comment Understanding virtual memory usage > swap + physical on Linux
This is totally confused. Overcommit is not what lets you allocate more virtual memory than physical memory plus swap space. You could do that even without overcommit. (For example, on a machine with 2GB of RAM, no swap, and no overcommit, you can still memory map a 4GB file read only, using 4GB of virtual memory.)
Jun
22
comment 80% memory utilization on server- is this just caching?
Is this a virtual machine or is this running on bare metal?
Jun
18
answered Is there any lower bound on DHCP lease time?
Jun
17
revised Does SNI represent a privacy concern for my website visitors?
deleted 3 characters in body
Jun
16
awarded  Enlightened
Jun
16
awarded  Nice Answer